About
Rat Overflow is an adorable rat breeding simulator about genetics, glory, and having way too many rats. Develop your show winner bloodlines and breed thousands of unique rat coats!
Released · Steam · App 4435150
Rat Overflow Little Beast Lab
Genres Casual Simulation Early Access
Casual Simulation Early Access view more (+3)
Categories Single-player Family Sharing
Single-player Family Sharing view more (+2)
Player tags Simulation Creature Collector Casual Cute Life Sim Sandbox 2D Science Management Pixel Graphics Stylized Idler Economy Early Access Education Family Friendly Nature Relaxing Retro Character Customization
Simulation Creature Collector Casual Cute Life Sim Sandbox 2D Science Management Pixel Graphics Stylized Idler Economy Early Access Education Family Friendly Nature Relaxing Retro Character Customization view more (+20)
Release
Mar 12, 2026
released
Followers history
Tracked since May 6, 2026 · Details 3d ago
