better-run-logs— Mod that logs every action, potion, choice and RNG state of a run. Useful for building test cases that check a simulator against the real game.
cuda-the-spire— Sieves Slay the Spire seeds on the GPU for properties such as card rewards, map layout and Neow options.
Filter the Spire— Mod that picks seeds before a run so it starts with chosen Neow bonuses, such as a specific boss-relic swap.
RunReplays— Slay the Spire 2 mod that replays a full recorded run, for demos and teaching.
SeedSearch— Runs Slay the Spire headless to search seeds against a configurable filter: rooms, card and relic rewards, events, bosses and Neow options.
Slay the Relics— Twitch extension and game mod that let stream viewers inspect the streamer's deck, relics, potions and powers.