: The game is built using C#, so the mono-runtime package is essential.

Welcome to the Celestial Layer. You are no longer on the grid.

Avoid extracting to /tmp (often mounted with noexec ). Use your home directory or an external drive:

Celeste is a masterpiece of a platformer, and luckily, getting it to run natively or via emulation on Linux is a smooth process. If you have the game files (specifically a .zip or folder) from a source like itch.io or a backup, here is how you get it working.

The community continues to expand how the game works on Linux: : The Everest Mod Loader