Rat Overflow (2026)

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!

• 70 Steam reviews
• 84% positive
• released 2026

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

See Rat Overflow on the map of Steam · Steam store page