You can download the full game from several official digital storefronts. Buying through these platforms ensures you receive the latest updates and access to online multiplayer:

: The "Best Friends Forever Double Pack" ($13.99) includes two copies of the game, making it cheaper to get a copy for you and a friend.

: PC (Windows/Linux), Nintendo Switch, and PlayStation 3. ibb & obb on Steam

: Only one person needs to own the game. The owner can invite a friend to play with them over the internet for free via the Steam client . Game Details at a Glance Genre : Cooperative Puzzle-Platformer Download Size : Approximately 675 MB

: 15 levels featuring "double gravity" puzzles where players can walk on both the top and bottom of platforms.

While the game itself is paid, there is one major way to play without both people buying it:

: The standard edition is available for $11.99 at the Steam Store .

is a paid cooperative puzzle game and is not officially available as a free download. While the names might sound like "APK" and "OBB" files used for sideloading Android apps, this is a specific indie game where you and a partner solve gravity-based puzzles. Official Purchase and Download Options