Kittens Game vs Realm Grinder
Both are prestige, deep incrementals. Here's how they differ, from the same data we use everywhere on IncrementalGames.org.
Kittens Game
UpdatedRun a civilisation of kittens from catnip fields to space elevators. Deep, slow, and endlessly spreadsheetable.
Realm Grinder
Pick a faction, build a kingdom, abdicate, reincarnate, ascend. Every run changes which of eleven factions is optimal.
The short version
- Kittens Game is completely free; Realm Grinder is free-to-play with purchases.
- Realm Grinder stacks more prestige layers (3 against 1).
Side by side
| Fact | Kittens Game | Realm Grinder |
|---|---|---|
| Ending | Endless | Endless |
| Time to finish | ∞ | ∞ |
| Idle (0 = active) | 55% | 55% |
| Offline progress | Yes | Yes |
| Prestige layers | 1 | 3 |
| Steam positive | ? | 87% |
| Price | Free | Free-to-play |
| Platforms | Browser, Mobile | Steam, Browser, Mobile |
| Last update | Sep 23, 2026 | ? |