Mod «Da Rules - A Sandbox Menu Thingy [Rep/Rep+/AB+]» for The Binding of Isaac

«Da Rules — A Sandbox Menu Thingy [Rep/Rep+/AB+]» is a mod for The Binding of Isaac: Rebirth that adds a sandbox menu to modify nearly any game element, including monsters, items, and visual effects. It supports actions like replacing, resizing, rotating, attaching, animating, and changing costumes. The full menu opens only in the starting room of each floor using the J key (configurable). In other rooms, a limited “Bonus Spawner” appears.

Controls:

— J key: Open menu

— Click: Select and change elements

— Right click: Edit attributes or view variants

— ENTER/RIGHT SHIFT/RIGHT CTRL: Confirm

Features include a “Rules Play Ground” challenge with achievements disabled and a “Rules Disabled” challenge to recover from lockouts. Rules can be backed up from «maingamefolder/data/darules/» or the AB+ save folder. Sharing options include converting rules to challenges, using console commands, or editing save files.

Mod support is limited; running with few other mods is advised. Entity selectors include content from Revelations, FiendFolio, Deliverance, and Retribution (Rep only). Some newer features work only in Repentance and may not function in AB+.

Known issues include rule persistence after quitting, co-op instability, and potential game lockouts. Use the “disable rules” challenge to reset problematic setups.