Ratopia

Side-scrolling colony sim built around rat economics and survival

Cassel Games · Released Apr 30, 2025

Adventure Casual Indie Simulation Strategy

Reviews: Very Positive; 88% of 4,891
Recent reviews: Very Positive; 92% of 41 in 30 days
Playing now: 125; right now
Steam Deck: Playable
Last update: 2 months ago; Jul 22, 2026

Free demo available, 1 playing it now: get the demo.

What is Ratopia?

This 2D single-player colony simulation has you build and manage a rat city whose citizens have individual traits and finances. You assign jobs and services, set taxes and policies, manage resources, and explore ruins where predators may be disturbed.

For you if...

+you enjoy colony building with taxes and individual finances
+you like difficult survival and resource-management systems
+you want exploration alongside city planning and worker management

Not for you if...

−you want hands-off management from a distant overview
−you dislike balancing citizen needs through long production chains
−you need a multiplayer colony-building mode

What players say

88% of 4,891 reviews are positive · 92% of 41 in the last 30 days

Players praise the mix of side-scrolling exploration, colony logistics, and a tax-based economy, along with its relatively accessible systems. Common complaints say avatar-centered management becomes tedious as the colony grows, citizen needs require frustrating production chains, and longer games can suffer bugs or instability.

Screenshots and trailer

Ratopia system requirements

As published by the developer.

Minimum

OS: Window 7, 8, 10 (64-bits)
Processor: 2.4 Ghz
Graphics: 512MB Video Ram
Memory: 4 GB RAM
Storage: 2 GB available space
DirectX: Version 10
Notes: Minimum resolution: 1280x720, recomended FULL HD 1920x1080.

PC version details

DRM, required accounts, controller support and Steam features.

DRM: None declared on Steam
Controller: Full controller support
Platforms: Windows, macOS
Achievements: 66
Steam features: Workshop, Cloud saves, Family Sharing, Trading cards

Steam Deck: Playable

Some in-game text is small and may be hard to read
All functionality is accessible with the default controller configuration
Shows Steam Deck controller icons
Default graphics settings perform well on Steam Deck

Multiplayer and co-op

Single-player

Languages

Full audio: English. Text only: Korean, Japanese, Simplified Chinese, Traditional Chinese, French, German, Russian, Ukrainian, Portuguese - Brazil, Spanish - Spain, Vietnamese, Thai.