After more than 10 years, a new version of SuperTux is out!
https://github.com/SuperTux/supertux/releases/tag/v0.4.0
>a nearly completely rewritten game engine based on OpenGL, OpenAL, SDL2, …
>support for translations
>in-game manager for downloadable add-ons and translations
>Bonus Island III, a for now unfinished Forest Island and the development levels in Incubator Island
>a final boss in Icy Island
>new and improved soundtracks and sound effects
>new badguys, bonuses and power-ups (air-, earth- and ice-flower)
>a halloween tilemap
>new graphic effects (glowing objects, particles, …)
>levels and worldmaps are scriptable using squirrel
>much more game objects: trampolines, switches, portable stones, wind, moving platforms, … - most of them have scripting APIs
>improved statistics
>many invisible changes, like unit tests, efficiency improvements and more bugfixes
>much more…