Slay the Spire 2 patch fixes RNG bug after a fan’s ‘8 hour descent into madness’ proves it exists—alongside heaps of other updates and a new Act 3 boss

Slay the Spire 2 has released a major patch addressing a long-standing random number generation bug that frustrated players for months. The bug was finally proven to exist through a dedicated player’s exhaustive eight-hour video analysis, providing empirical evidence of the broken RNG mechanics. The primary culprit was Neow’s Bones, a relic that grants two additional relics alongside a random curse upon pickup, with players reporting disproportionately frequent and brutal curse outcomes, particularly the “Debt” curse that removes 10 gold per turn while in hand.

Beyond the critical RNG fix, the patch delivers substantial content and feature additions. A new Act 3 boss called Aeonglass replaces the much-criticized Doormaker, offering a fresh endgame challenge. The update introduces Steam Workshop support, enabling community modding and expansion of the game’s content ecosystem. A comprehensive monster bestiary has been added to the Compendium, providing players with detailed information about enemies they encounter.

The patch represents a significant balance overhaul that extends beyond the RNG correction, with multiple gameplay adjustments mentioned that will require community guides and strategies to be updated. The resolution of the RNG issue is particularly noteworthy given the inherent difficulty in identifying and proving such bugs—random systems are notoriously challenging to debug through normal gameplay, making the player’s methodical documentation effort instrumental in prompting developer action.

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