Finally, launch the game with mods enabled. Using your mod manager, select the mods you want to enable and launch the game. The game will then load with the mods enabled, allowing you to experience the new content.
You’ll see a list of every mod you’ve subscribed to. Use the arrow keys or mouse to select a mod and press or click the checkmark icon. A green checkmark means it’s active.
Launch the game and head to the Mods menu. Make sure the mod is listed and not "grayed out." Use the Spacebar to toggle them on or off. The Epic Games Store & Alternative Methods
Once you enable mods, the game appends [MODDED] to your save name. Your unmodded save is still safely stored. To go back to vanilla, disable all mods, restart, and your clean save will return.
: Once Mom has been defeated once on that save file, you can enable mods and still earn all future achievements and unlocks normally. 3. Manual Installation (Non-Steam)
| Error Message / Symptom | Probable Cause | Solution | | :--- | :--- | :--- | | Game crashes on startup | Two mods editing the same file (e.g., two enemy re-skins) | Disable mods one-by-one (binary search method) to find the conflict. | | Achievements are disabled despite beating Mom | You started this save file with mods active. | Delete save data (backup first) or use a third-party save editor to flag "Mom killed" as true. | | Mod not appearing in list | Steam sync failure | Restart Steam. If persists, unsubscribe, delete the workshop folder, re-subscribe. | | "Lua Error" on screen | Outdated mod or Repentance version | Check mod’s Workshop comments for a patch or update. |