Repentance added 234 new secrets, for a total of 637.Īt the stats screen, pressing Alt + F2 will sync unlocks with Steam achievements. Booster Pack #5 added 64 new secrets, for a total of 403. Afterbirth † added 63 new secrets, for a total of 339. Afterbirth added 98 new secrets, for a total of 276.
Rebirth has a total of 178 unlockable secrets.
Certain cosmetic and difficulty-increasing special seeds will still allow unlocks. Conditions which can disable the ability to unlock achievements include:
If Isaac is unable to unlock achievements, a small icon of a crossed-out trophy will be displayed below the Keys counter. In the PC version, every Steam achievement exactly corresponds to one secret in-game, whereas only a handful of secrets are represented by PSN trophies in the Playstation version of the game. For tips and strategies on completing achievements, see achievement tips.Īchievements are unlocked after completing Challenges, reaching certain milestones, achieving hidden goals, or unlocking certain items.