Endless Isaac floors in Baldi's school. Clear, boss, down. Score by floors.
Isaac Basement mashes up The Binding of Isaac's roguelike feel with Baldi's Basics. Each floor is a self-contained run: clear rooms, beat the boss, fall through the trapdoor to the next harder floor. Score = floors cleared. Collect keys and bombs, unlock locked doors, and explore more rooms. Expanded item and monster roster. HUD shows current floor, keys and bombs. Interact to pick up items, RMB/F to fire. Tears pass through walls and doors. Plays from Baldi's Basics Classic Remastered; reads Isaac Rebirth content you already own. No Isaac content is shipped. Single-player, one-click.