I'm in it like spinners
Tools: Anything FOSS. Typically Tiled, GIMP, Inkscape, and Blender have served me well.
Languages: C++ and Lua are my go-tos. Next jam might be Rust though!
Libs / APIs: Anything FOSS. Sqlite, SDL2, OpenGL ES2, IQM almost always show up.
I'm also looking into a way to receive analytics data from the game. If I have analytics / telemetry they'll be opt-in because I respect your privacy!
I hate doing art!