ReflectionHLE

Reflection Keen (also known as Reflection Catacomb) is a source port for Keen Dreams, as well as Catacomb 3D and the Catacomb Adventure Series. Although at first brush this seems odd, given the former is a 2D side scroller and the later is a 2.5D first person shooter, the two games share very similar code bases, raycasting aside. This includes sharing the same tile map format and the Paddle War mini-game based on Breakout accessible from the main menu in both Keen Dreams and Catacomb 3D. The port can officially be built for Microsoft Windwos, Linux and Android, but has also been tried on macOS and Amiga OS.