Adventures on Planet Zephulor

Adventures on Planet Zephulor is a side-scrolling platform shooter with a science fiction setting. Taking on the role of a stranded astronaut on a distant planet, the player has to fight through the alien environs to make it to a ship to get off world. There are no lives and upon death the player simply restarts the level, although quicksaves are provided. The game features fifteen levels in two distinct regions and five different enemy types. The artwork was initially under the non-free Creative Commons Attribution-NonCommercial-ShareAlike 2.0, but was later all released under the GNU GPL 2-or-later.