1.aseprite / asepriteAnimated sprite editor & pixel art tool (Windows, macOS, Linux)animationpixel-artgraphicsanimated-spritesspritesheetgif+9 moreC++No license41K total9.4K forks+3,983 starsfrom 36,579 · score 8.29
2.Rangi42 / tilemap-studioA tilemap editor for Game Boy, Color, Advance, DS, and SNES projects. Written in C++ with FLTK.tilemaptilemap-editorgame-developmentgameboygameboy-colorgameboy-advance+10 moreC++Other license539 total46 forks+32 starsfrom 506 · score 3.50