Overview
- Players discovered that Slay the Spire 2’s random-number generation produced correlated randomness, meaning one roll could give information about other unrelated rolls and make some outcomes predictably skewed.
- A community researcher known as tckmn published a roughly 6,600–7,000-word analysis and an extended stream documenting concrete examples of the problem, including region-dependent relic curses, left-target orb bias, and some cards being unobtainable in single-player.
- Mega Crit publicly acknowledged the flaw, credited tckmn for the research, and said the studio’s seed and RNG implementation had allowed those cross-check correlations to form.
- The studio released update 0.107.1 on the main branch that reworks RNG to eliminate human-detectable correlations and also ships Steam Workshop support, the new Aeonglass boss, a Bestiary, balance changes, and the removal of the Doormaker boss.
- Players can expect fairer random outcomes going forward but Mega Crit plans continued testing and iteration in Early Access, and the change highlights how deep community analysis can prompt rapid fixes during open development.