
Sparpweed Games · released August 6, 2013
The green creature, ibb, and the pink creature, obb, travel through a world divided by a thin horizon line; on either side of the barrier, everything is inverted and gravity works in opposite directions. The game is focused on cooperative play and the two characters must work closely together to progress through the game.
Sales
300,000
all platforms · as of October 15, 2026
Latest Steam CCU
18
Steam daily peak · Oct 25, 2026
Steam all-time peak
1,073
Steam concurrent players · Sep 2017
| Platforms | Sales | Share |
|---|---|---|
| PlayStation | 170K | 57% |
| PC | 130K | 43% |
Source: Steam