{"id":1611073,"date":"2026-06-19T10:58:34","date_gmt":"2026-06-19T10:58:34","guid":{"rendered":"http:\/\/u4Rkfear6XAHtw839wZgdb"},"modified":"2026-06-19T10:58:34","modified_gmt":"2026-06-19T10:58:34","slug":"slay-the-spire-2-patch-fixes-rng-bug-after-a-fans-8-hour-descent-into-madness-proves-it-exists-alongside-heaps-of-other-updates-and-a-new-act-3-boss","status":"publish","type":"post","link":"https:\/\/arcader.org\/news\/slay-the-spire-2-patch-fixes-rng-bug-after-a-fans-8-hour-descent-into-madness-proves-it-exists-alongside-heaps-of-other-updates-and-a-new-act-3-boss\/","title":{"rendered":"Slay the Spire 2 patch fixes RNG bug after a fan’s ‘8 hour descent into madness’ proves it exists\u2014alongside heaps of other updates and a new Act 3 boss"},"content":{"rendered":"
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Slay the Spire 2<\/a> just released a major balance patch<\/a>\u2014and aside from forcing me into an update for my Silent Ascension 10 guide<\/a> in the near future\u2014it’s delivered a whole heap of changes to the game, including one fascinating RNG bugfix discovered at the hands of a determined player.<\/p>\n

RNG can always be a nightmare to figure out, mostly because human brains just don’t perceive games of chance all that well. If you’ve ever missed on a 99% chance shot in XCOM, you know this feeling\u2014a 1 in 100 chance is unlikely, but not impossible. And yet your brain tells you that some great and unforeseen injustice has visited you if it happens.<\/p>\n

Anyway, one player spent about eight hours trying to prove they weren’t crazy. User tckmn on the subreddit<\/a> released a manifesto that’s credited in the patch notes, an “eight-hour descent into madness”, without which “we wouldn’t have caught the issue.”<\/p>\n

The problem in question relates to Neow’s Bones, a starting option that allows players to take on two starting relics in exchange for a curse\u2014which could either be a non-event, giving you a curse that’s just a dead card. Or you could get something like Debt, which could utterly spoil the economy of your run.<\/p>\n

Turns out, you could tell if certain runs were more likely to give you Debt than others\u2014specifically, if you started in the Underdocks, Neow’s Curse was 54% likely to give you the Debt curse.<\/p>\n

As the devs themselves explain it: “Most games, including STS2, use pseudo-random number generators (PRNGs). A PRNG is fed a seed value, and given the same seed value, a PRNG will always generate the same sequence of random numbers.<\/p>\n

“Since we fed different seeds to each PRNG, we expected their results to be completely unrelated. But we were wrong, and it turns out that our strategy allowed players to predict outcomes given knowledge of unrelated parts of the game.”<\/p>\n

The issue was that the decimals which governed which Act 1 you got also <\/em>happened to correlate to your Neow’s Bones curse: “For example, if our act roll is >0.5 (we\u2019re in the Underdocks), then it\u2019s highly likely that our Neow\u2019s Bones curse roll will be <0.5, which cuts the potential curses you can obtain in half.\"<\/p>\n

But rest assured, “your suffering is now truly random!” Mega Crit’s swapped to a system that’s far less predictable. <\/p>\n

The patch itself also has a ton of other changes\u2014balance adjustments for instance, which impact the Regent most of all. It’s swings and roundabouts, with some cards like Monarch’s Gaze getting a bump, and others, like my darling Reflect, being nerfed slightly. <\/p>\n

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