Principia, a physics-based sandbox game, has been released in version 2026.08.16.
The biggest change is that all GTK dialogs have been replaced with a new interface based on Dear ImGui - GTK3 is no longer a dependency. This fixes window focus issues and brings back Wayland support on Linux. On top of that there’s a new sticky note font, improved postprocessing effects, and an initial homebrew port for the Nintendo Switch.
- Replace all GTK dialogs with new Dear Imgui-based dialogs on desktop
- GTK3 is now no longer a dependency of Principia
- Fixes various issues where the game window loses focus or otherwise plays poorly with GTK dialogs which appear as their own window
- The game now runs on Wayland again where available
- Window no longer flickers in fullscreen mode on Windows
- New Sticky Note font, allow more lines of text on a single sticky note
- Improvements to the main menu
- Fix Checkpoint behaving weirdly outside of Adventure mode
- Improvements to the postprocessing pipeline
- Make bloom and gamma correction work on OpenGL ES (still not enabled on Android)
- Fix Android version crashing when no WebView provider is available
- Fix building and running on Haiku OS
- Fix building with SDL 3.2.X
- Initial Nintendo Switch homebrew port
Source: GitHub