**Mastery Loadouts**
Due to issues related to the release of Mastery Loadouts, the "free swap" period will be extended.
The new end date will be May 1st.

New drop rates display

135

Comments

  • MarzGrooveMarzGroove Posts: 903 ★★★
    CapWW2 wrote: »
    Why display this unfair system when it is like a fake system? You say 2 percent chance but it can be 0.000001 hidden or it can be 5 percent. We dont know the truth until you release the algorithms.

    How about putting a prize tag on champs. Straight up prize tag.

    That made no sense.
  • DNA3000DNA3000 Posts: 18,657 Guardian
    DNA3000 wrote: »
    DNA3000 wrote: »
    Dexman1349 wrote: »
    Shame they waited until after the 5* Blade featured crystal is done to do this.

    I'm sure that the posted rates and the end of the previous featured crystal was 100% intentional.

    Nope! Those two things have nothing to do with each other!

    @Kabam Miike is the display in the announcement a mock up, or taken from the live data? And if it is taken from the live data, have the crystal drop odds been changed in conjunction with the odds disclosures?

    Because the announcement sample says PHCs have 2% chance to drop 4* champions but unless that has been changed significantly since when people were recording and analyzing PHC drop rates that is sufficiently different from player observations that it literally would be statistically significant proof the drop system was malfunctioning for PHC crystals.

    I think the sample size of data that you are basing your opinion on is probably too small in this case to determine if they are in control or out of control. I average at least 50-60 PHC shard crystals per month. I open ten at a time and just last week I pulled three 4*s. The odds are maddening, but I do not think they have ever been adjusted.

    The second analysis I did on PHC drops on Reddit back when people were still streaming huge PHC openings was based on a sample size of several thousand openings, something like 7000 if I recall correctly. The number I got was about one in 115, plus or minus about 15%. So between one in one hundred and one in 120, with a fairly decent confidence level. A lot of time has passed since then so odds could be different now, but at the time I was pretty confident the statistical analysis was valid.

    I wouldn't consider this possibility unless the statistical data was very strong. Even a couple hundred openings would be statistically inconclusive. You need enough data to generate at least 50-100 4* champions to start to home in on the first digit of the percentage odds. At the time I was looking, I'm statistically certain that digit wasn't 2 to a high degree of confidence.

    But there is your problem. Haven't you already skewed your results by taking only a subset of users in this case? I get that the sample should be reasonably confident for the population as a whole since the odds should be the same regardless, but we all know that some people just have more luck than others and there are outliers.

    To reduce the likelihood of self-reporting bias, I only included data from crystal openings that were originally live streamed. This mostly eliminates the possibility of only including particularly good or particularly bad data.

    When I say "on Reddit" I mean I posted it on Reddit, not that I analyzed Reddit posts. Back then I use to post numerical posts there more than here, because honestly the amount of quantitative discussions of the game here was dismal.

    I agree statistical bias is very tricky to eliminate from analysis: you have to have experience in doing it or you're likely to run into potential problems. For example, even the recent Blade crystal poll contained a subtle bias: many players chose to spin until they got him. Spin until you win introduces skew, and anyone willing to do the binomial expansion will see that spin until you win can skew a 20% result towards 40%. Because most people didn't do spin until you win, the actual collected data was probably only skewed slightly due to that problem. This kind of thing is notorious to remove completely, and I've had years of practice but still originally missed that one until someone asked about it.
  • SIlverProfessorSIlverProfessor Posts: 495 ★★
    Theoretical probability and experimental probability are two different things and people should realize that.

    I went 0-10 on blade featured crystals and someone went 1-1.

    Just because the theoretical odds are 50% doesn’t mean that will happen in practice. Try flipping a coin. You don’t get head and tails every other time. However, over the course of your experiment you will get back to 50/50 probabilities.

    Doesn’t mean I’m still not salty about going 0-10 on featureds though. Arrggfhhhhh. Haha.
  • DNA3000DNA3000 Posts: 18,657 Guardian
    CapWW2 wrote: »
    Why display this unfair system when it is like a fake system? You say 2 percent chance but it can be 0.000001 hidden or it can be 5 percent. We dont know the truth until you release the algorithms.

    If you don't believe their numbers, why would you believe their algorithms? The algorithm for randomized lootboxes is fairly simple. You have a reward table that includes all the entries and numerical weights that determine the odds of each entry being chosen. When you have tiers, for example PHC crystals contain 2* 3* and 4* champions at different relative odds, you use a multi-tier drop table. The game seems to be pulling the rarity table weights and calculating the drop percentage and then displaying it.

    Now, if you think Kabam is straight up lying to you, why wouldn't they just tell you what the textbook stochastic loot box algorithm is, whether they use it or not, to make you go away?
  • DNA3000DNA3000 Posts: 18,657 Guardian
    Theoretical probability and experimental probability are two different things and people should realize that.

    That's a bit of a mangle of the word "probability." The only difference between theoretical probability and experimental probability is that your theory might be wrong. I think I understand what you are trying to say, but I wouldn't put it that way because it encourages people to think that probability and statistics sometimes "don't work in the real world." That's not the case at all.

    Probability and statistics by definition do not guarantee a particular result. They only describe the likelihood of particular results before they happen. They encapsulate uncertainty. This is a subtle but important distinction. Before I open a featured Blade crystal the odds are (for the sake of discussion) 20% that I will get Blade. *After* I open the crystal the odds are exactly 100% that I will get what I got, because there is now zero uncertainty to that question.

    When we say some event has a certain statistical chance to occur, we are not saying that we are guaranteeing that this thing will happen at a specific rate. If we could make that guarantee, then we have absolute certainty about what will happen and statistics no longer applies. The probability of getting one in five is 100% if we are certain this will happen.

    When we measure probability, most experiments to measure probability cannot measure probability with absolute certainty, because by definition all probability contains uncertainties. All we can do is increase our confidence that the probability of something happening is within a certain range. But all of Science relies on being confident in measuring probabilities not perfectly, but accurate to within a certain level of confidence. Even the computers everyone is reading this post on relies on integrated circuits that operate in part on confidence in statistical quantum mechanics. There is only a certain probability that electrons will tunnel across transistor gate voltages, and your computer will only function correctly if that probability is high enough to make errors vanishingly unlikely.
  • MattScottMattScott Posts: 587 ★★
    I once opened 10 feature crystals for ghost rider,
    Before GMC’s and i got 2 4* GR and another 4* champ. Then you’ll go through 300-400 without a single 4*.
  • LordBaldyBaldLordBaldyBald Posts: 265
    Bosley wrote: »
    @Kabam Miike So, what does this mean? Please elaborate...

    "The rates you see are set in the back-end and directly display the drop rates of the crystal. This means that there is no room for human error and you are getting the most accurate information."

    It pretty much means these are the drop rates for each individual crystal you open and not just guesstimated drop rates by someone who claims to be a guru of this game. No “well if you open 10 crystals...”, no “well from what I’ve experienced...”, and no “well you should be due for one soon since...”. Flat drop rates per each individual crystal. All day. Every day.
  • Dexman1349Dexman1349 Posts: 3,060 ★★★★★
    edited March 2018
    It's also worth noting the difference between probability and statistics. Probability is as DNA explained above where it describes the chances and uncertainty of a desired outcome BEFORE the event. Statistics is the analysis of the data AFTER the event. You can use the statistical data to generate the probability of future events. Obviously the bigger the statistical pool, the better probability picture that can be created.

    When we analyze the hundreds of crystals opened, the probability of pulling Blade is 10% (for example), but the statistics show I pulled him 100% of the time (1 for 1).
  • DNA3000DNA3000 Posts: 18,657 Guardian
    Dexman1349 wrote: »
    It's also worth noting the difference between probability and statistics. Probability is as DNA explained above where it describes the chances and uncertainty of a desired outcome BEFORE the event. Statistics is the analysis of the data AFTER the event. You can use the statistical data to generate the probability of future events. Obviously the bigger the statistical pool, the better probability picture that can be created.

    When we analyze the hundreds of crystals opened, the probability of pulling Blade is 10% (for example), but the statistics show I pulled him 100% of the time (1 for 1).

    Yes, I glossed over that, but you are correct that there is a difference between probability and statistics. Also they are not linked. You can use statistical analysis to analyze things with no probability associated with them. For example, you can statistically analyze the words Shakespeare used in all of his works. You end up with the frequency of every word he used, but that data has no random components associated with them.

    And if there is an actual mathematician reading this, strictly speaking computer PRNGs are not absolutely random: knowing the algorithm and the seed makes them absolutely deterministic. But since we don't know what the initializing seed is and we do not know how quickly the generated sequence is being consumed by the game we cannot predict what the visible output sequence will be and statistical analysis then measures our uncertainty about the generated sequences represented as a probability.

    These distinctions are not normally important in colloquial conversation, but they become important when people don't fully understand or misapply these tools and draw incorrect conclusions.
  • Maat1985Maat1985 Posts: 2,237 ★★★★
    Really it doesnt matter wat anyone here says.... it doesnt matter how much sense it makes.....
    All that is gunna happen is instead of
    “I cant get a 4* ur crystals are rigged” “phc should be just called a 2*”
    All you are gunna get now is
    “**** it is not 2% chance stop lying” and “2% chance for your whales, not for the f2p”

    Nothing will change at all.... salty people will always be salty... stupid people will always be stupid and complainers will always complain....
  • DNA3000DNA3000 Posts: 18,657 Guardian
    Maat1985 wrote: »
    Really it doesnt matter wat anyone here says.... it doesnt matter how much sense it makes.....
    All that is gunna happen is instead of
    “I cant get a 4* ur crystals are rigged” “phc should be just called a 2*”
    All you are gunna get now is
    “**** it is not 2% chance stop lying” and “2% chance for your whales, not for the f2p”

    Nothing will change at all.... salty people will always be salty... stupid people will always be stupid and complainers will always complain....

    Can't save everyone. Some people live in an evidence-based world, and the rest you have to let live in their own encapsulated phantasms. They shouldn't be the determiner for the information everyone else benefits from.
  • NikoBravoNikoBravo Posts: 447 ★★★
    I call bologna on the whole drop rates are the same in our algorithms. I have on many recent occasions sold champs in 2, 3, and 4* hero's only to pull them with the next crystal. The odds of that happening are crazy high, for it to happen multiple times in a 2 week span is astronomical. You guys are definitely fixing the probability somewhere.

    -Niko
  • Maat1985Maat1985 Posts: 2,237 ★★★★
    DNA3000 wrote: »
    Maat1985 wrote: »
    Really it doesnt matter wat anyone here says.... it doesnt matter how much sense it makes.....
    All that is gunna happen is instead of
    “I cant get a 4* ur crystals are rigged” “phc should be just called a 2*”
    All you are gunna get now is
    “**** it is not 2% chance stop lying” and “2% chance for your whales, not for the f2p”

    Nothing will change at all.... salty people will always be salty... stupid people will always be stupid and complainers will always complain....

    Can't save everyone. Some people live in an evidence-based world, and the rest you have to let live in their own encapsulated phantasms. They shouldn't be the determiner for the information everyone else benefits from.

    Point proven..... lol.... right on queue..... lol....

    NikoBravo wrote: »
    I call bologna on the whole drop rates are the same in our algorithms. I have on many recent occasions sold champs in 2, 3, and 4* hero's only to pull them with the next crystal. The odds of that happening are crazy high, for it to happen multiple times in a 2 week span is astronomical. You guys are definitely fixing the probability somewhere.

    -Niko

  • MattScottMattScott Posts: 587 ★★
    DNA3000 wrote: »
    Dexman1349 wrote: »
    It's also worth noting the difference between probability and statistics. Probability is as DNA explained above where it describes the chances and uncertainty of a desired outcome BEFORE the event. Statistics is the analysis of the data AFTER the event. You can use the statistical data to generate the probability of future events. Obviously the bigger the statistical pool, the better probability picture that can be created.

    When we analyze the hundreds of crystals opened, the probability of pulling Blade is 10% (for example), but the statistics show I pulled him 100% of the time (1 for 1).

    Yes, I glossed over that, but you are correct that there is a difference between probability and statistics. Also they are not linked. You can use statistical analysis to analyze things with no probability associated with them. For example, you can statistically analyze the words Shakespeare used in all of his works. You end up with the frequency of every word he used, but that data has no random components associated with them.

    And if there is an actual mathematician reading this, strictly speaking computer PRNGs are not absolutely random: knowing the algorithm and the seed makes them absolutely deterministic. But since we don't know what the initializing seed is and we do not know how quickly the generated sequence is being consumed by the game we cannot predict what the visible output sequence will be and statistical analysis then measures our uncertainty about the generated sequences represented as a probability.

    These distinctions are not normally important in colloquial conversation, but they become important when people don't fully understand or misapply these tools and draw incorrect conclusions.

    Correct, a computer does not have the capability to generate random, it’s usually some equation, with ticks tied into it, but if you knew the formula and had impossibly perfect timing, you could theoretically get only the absolute best pulls.
  • DNA3000DNA3000 Posts: 18,657 Guardian
    Maat1985 wrote: »
    Point proven..... lol.... right on queue..... lol....

    The benefit of living in an evidence-based world is that mass delusions require constant approbation from willing co-conspirators. There's no such requirement when all you care about is the facts. There is no threat to the facts that laughter can ultimately pose. I've seen it come, and more importantly on the time scales I care about I've always seen it go.
  • Maat1985Maat1985 Posts: 2,237 ★★★★
    edited March 2018
    *edit my bad.... lol

    Even if you knew the formula used to generate the result..... and you could reverse that calculation to determine the input seed required to get your desired result how would you ensure that your crystal opening entered that exact seed....
    Without being able to hack and enter the seed you want....
    Its not like time of day would determine thenseed used as that would not be random.... if there was a determining influence surely we would be able to see a pattern without knowing the formula

    Knowing the formula would just allow us to understand it properly.... would still need the way to actually affect he pull
  • DNA3000DNA3000 Posts: 18,657 Guardian
    Maat1985 wrote: »
    *edit my bad.... lol

    Even if you knew the formula used to generate the result..... and you could reverse that calculation to determine the input seed required to get your desired result how would you ensure that your crystal opening entered that exact seed....
    Without being able to hack and enter the seed you want....
    Its not like time of day would determine thenseed used as that would not be random.... if there was a determining influence surely we would be able to see a pattern without knowing the formula

    Knowing the formula would just allow us to understand it properly.... would still need the way to actually affect he pull

    Hypothetically speaking if we knew the algorithm and precisely how it was used in crystal drops, if it was the right algorithm like say Mersenne Twister it is mathematically possible to reverse the seed after seeing enough drops. You could then choose the date and time of a crystal opening to coincide with the right generated number to get what you wanted, if you also knew the precise nature of the reward table construction and all of the generated numbers between then and now. None of these things is practical except under very contrived circumstances, but it is not mathematically impossible. It would probably be easier to hack the game and just add the champion to your roster directly.

    I doubt the PRNG is reseeded often. Most developers don't do that because under most circumstances it doesn't have any real benefit, because attacks against the seed in a game environment are so unlikely and impractical in the first place. If I had to guess, my guess would be that the server side PRNG(s) are reset when the servers are rebooted.

    Reseeding itself can be a potential weakness if you don't do it right so it is not automatically correct to reseed constantly. Some generators, for example, require you to throw away the first few generated numbers after initialization. If you forget to do that, reseeding can weaken your random number generation. Probably still not enough for game players to notice, but still.
  • Maat1985Maat1985 Posts: 2,237 ★★★★
    edited March 2018
    So as said practically impossible

    Meaning mathematically possible but far from practical to do so
  • shchong2shchong2 Posts: 2,419 ★★★★
    I’m more of a tea man myself.

    I'm both a coffee & a tea person, although I drink more coffee each day
    But in this case, I would rather join you for tea :)
  • beyonder8421beyonder8421 Posts: 881 ★★★
    I do think that they were messing with the percentages. Whenever there was an arena, that champion used to pop up more often in crystals than others. This could be a coincidence... but a very recurring coincidence in a 3 year span.

    In the end, it is nice to have the drop rates. But whether it is accurate, bugged or working as intended, we will never know.
  • MattScottMattScott Posts: 587 ★★
    DNA3000 wrote: »
    Maat1985 wrote: »
    *edit my bad.... lol

    Even if you knew the formula used to generate the result..... and you could reverse that calculation to determine the input seed required to get your desired result how would you ensure that your crystal opening entered that exact seed....
    Without being able to hack and enter the seed you want....
    Its not like time of day would determine thenseed used as that would not be random.... if there was a determining influence surely we would be able to see a pattern without knowing the formula

    Knowing the formula would just allow us to understand it properly.... would still need the way to actually affect he pull

    Hypothetically speaking if we knew the algorithm and precisely how it was used in crystal drops, if it was the right algorithm like say Mersenne Twister it is mathematically possible to reverse the seed after seeing enough drops. You could then choose the date and time of a crystal opening to coincide with the right generated number to get what you wanted, if you also knew the precise nature of the reward table construction and all of the generated numbers between then and now. None of these things is practical except under very contrived circumstances, but it is not mathematically impossible. It would probably be easier to hack the game and just add the champion to your roster directly.

    I doubt the PRNG is reseeded often. Most developers don't do that because under most circumstances it doesn't have any real benefit, because attacks against the seed in a game environment are so unlikely and impractical in the first place. If I had to guess, my guess would be that the server side PRNG(s) are reset when the servers are rebooted.

    Reseeding itself can be a potential weakness if you don't do it right so it is not automatically correct to reseed constantly. Some generators, for example, require you to throw away the first few generated numbers after initialization. If you forget to do that, reseeding can weaken your random number generation. Probably still not enough for game players to notice, but still.

    Right, I highly doubt they have an uncrackable setup containing a very precise barometric pressure device, and this value tying into the algorithm as this would be absolute overkill for this situation.
  • DNA3000DNA3000 Posts: 18,657 Guardian
    MattScott wrote: »
    DNA3000 wrote: »
    Maat1985 wrote: »
    *edit my bad.... lol

    Even if you knew the formula used to generate the result..... and you could reverse that calculation to determine the input seed required to get your desired result how would you ensure that your crystal opening entered that exact seed....
    Without being able to hack and enter the seed you want....
    Its not like time of day would determine thenseed used as that would not be random.... if there was a determining influence surely we would be able to see a pattern without knowing the formula

    Knowing the formula would just allow us to understand it properly.... would still need the way to actually affect he pull

    Hypothetically speaking if we knew the algorithm and precisely how it was used in crystal drops, if it was the right algorithm like say Mersenne Twister it is mathematically possible to reverse the seed after seeing enough drops. You could then choose the date and time of a crystal opening to coincide with the right generated number to get what you wanted, if you also knew the precise nature of the reward table construction and all of the generated numbers between then and now. None of these things is practical except under very contrived circumstances, but it is not mathematically impossible. It would probably be easier to hack the game and just add the champion to your roster directly.

    I doubt the PRNG is reseeded often. Most developers don't do that because under most circumstances it doesn't have any real benefit, because attacks against the seed in a game environment are so unlikely and impractical in the first place. If I had to guess, my guess would be that the server side PRNG(s) are reset when the servers are rebooted.

    Reseeding itself can be a potential weakness if you don't do it right so it is not automatically correct to reseed constantly. Some generators, for example, require you to throw away the first few generated numbers after initialization. If you forget to do that, reseeding can weaken your random number generation. Probably still not enough for game players to notice, but still.

    Right, I highly doubt they have an uncrackable setup containing a very precise barometric pressure device, and this value tying into the algorithm as this would be absolute overkill for this situation.

    There's no reason to use barometers in this situation, when collecting entropy with network packet timing would always work perfectly fine when you're dealing with massively multiplayer game servers.
  • 1ceman181ceman18 Posts: 32
    2% for a 4*champion from a premium hero crystal, damn, I think the word premium has lost all of its meaning in the eyes of Kabam. So does this drop rate feature apply to manually spinning the crystal or using the open the crystal feature as well. And the analogy of equating this to a coin toss is just ridiculous. With a coin toss you're guaranteed a head or a tail and the chances of getting either a head or tail is significantly higher compared to a crystal with an upward of about how many champions I'm not sure but thanks to Kabam there's a 50/50 chance of 2% to acquire a 4* champion. Seriously lmao
  • beyonder8421beyonder8421 Posts: 881 ★★★
    1ceman18 wrote: »
    2% for a 4*champion from a premium hero crystal, damn, I think the word premium has lost all of its meaning in the eyes of Kabam. So does this drop rate feature apply to manually spinning the crystal or using the open the crystal feature as well. And the analogy of equating this to a coin toss is just ridiculous. With a coin toss you're guaranteed a head or a tail and the chances of getting either a head or tail is significantly higher compared to a crystal with an upward of about how many champions I'm not sure but thanks to Kabam there's a 50/50 chance of 2% to acquire a 4* champion. Seriously lmao

    When the Premium Hero Crystal was introduced, the landscape of crystals was different. So you had the free daily crystal (that wasn't just champions), and the free 4 hour crystal (that has no champions). And that was pretty much it. You had special featured crystals like romance, or avengers crystals, and 3 and 4 star crystals were only available through offers (no shards in the game). So it was kind of a premium crystal. They should probably update the name.
  • DNA3000DNA3000 Posts: 18,657 Guardian
    1ceman18 wrote: »
    So does this drop rate feature apply to manually spinning the crystal or using the open the crystal feature as well.

    Kabam says spinning or not spinning doesn't affect crystal odds. This is backed up by the fact that you get the reward before the crystal even starts visually spinning, which makes it very unlikely that spinning alters the odds for that crystal.
  • MattScottMattScott Posts: 587 ★★
    DNA3000 wrote: »
    1ceman18 wrote: »
    So does this drop rate feature apply to manually spinning the crystal or using the open the crystal feature as well.

    Kabam says spinning or not spinning doesn't affect crystal odds. This is backed up by the fact that you get the reward before the crystal even starts visually spinning, which makes it very unlikely that spinning alters the odds for that crystal.

    People say this a lot but it’s not true. Champ is determined once the crystal stutters. Don’t believe me? Buy a crystal and spin it. Then close game. It will still be in your inventory. But wait until you see the hesitation and then close game, and your champ will be in your inventory.
  • beyonder8421beyonder8421 Posts: 881 ★★★
    MattScott wrote: »
    DNA3000 wrote: »
    1ceman18 wrote: »
    So does this drop rate feature apply to manually spinning the crystal or using the open the crystal feature as well.

    Kabam says spinning or not spinning doesn't affect crystal odds. This is backed up by the fact that you get the reward before the crystal even starts visually spinning, which makes it very unlikely that spinning alters the odds for that crystal.

    People say this a lot but it’s not true. Champ is determined once the crystal stutters. Don’t believe me? Buy a crystal and spin it. Then close game. It will still be in your inventory. But wait until you see the hesitation and then close game, and your champ will be in your inventory.

    Mmm... once you place the crystal and release your finger from it, that should be it.
  • DNA3000DNA3000 Posts: 18,657 Guardian
    MattScott wrote: »
    DNA3000 wrote: »
    1ceman18 wrote: »
    So does this drop rate feature apply to manually spinning the crystal or using the open the crystal feature as well.

    Kabam says spinning or not spinning doesn't affect crystal odds. This is backed up by the fact that you get the reward before the crystal even starts visually spinning, which makes it very unlikely that spinning alters the odds for that crystal.

    People say this a lot but it’s not true. Champ is determined once the crystal stutters. Don’t believe me? Buy a crystal and spin it. Then close game. It will still be in your inventory. But wait until you see the hesitation and then close game, and your champ will be in your inventory.

    Once you place the crystal in the spinner, your entire alliance sees what you got in alliance chat. That is the moment when the servers determine your reward, and I've tested this myself when I first heard about it.
This discussion has been closed.