open source retro-style 2D scrolling platform shooter game
Dave Gnukem is an open source retro-style 2D scrolling platform shooter, inspired by and similar to Duke Nukem 1 (a famous original 1991 game that launched the Duke Nukem series). It features an integrated level editor. (Please note this is not a 'clone' or a 're-make'; it is probably most akin to a parody.)
Homepage: https://djoffe.com/gnukem/