Kittens Game vs NGU Idle
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.

NGU Idle
Joke-dense RPG idler with dozens of interlocking systems. Beating a boss is the easy part; allocating energy is the game.
The short version
- Kittens Game is completely free; NGU Idle is free-to-play with purchases.
Side by side
| Fact | Kittens Game | NGU Idle |
|---|---|---|
| Ending | Endless | Endless |
| Time to finish | ∞ | ∞ |
| Idle (0 = active) | 55% | 65% |
| Offline progress | Yes | Yes |
| Prestige layers | 1 | 1 |
| Steam positive | ? | 96% |
| Price | Free | Free-to-play |
| Platforms | Browser, Mobile | Steam, Browser |
| Last update | Nov 8, 2026 | ? |