Godot
Appearance
Godot is an open-source game engine, capable of creating both 2D and 3D games.
Usage in NixOS
Use steam-run
to run a Godot exported project (without having to fix paths for Nix).
Installation
Add either pkgs.godot
(GDScript) or pkgs.godot-mono
(GDScript + C#) to environment.systemPackages
.