Thanks a lot for your help! Though I still have 1 problem:
I don’t know if Talonlang supports SDL (it would support it only if the interpreter would), so I think that for Talonlang I’ll have to make a text-based game, maybe with ncurses. I would like to know if I can directly import Python modules from Talonlang (since its interpreter is written in Python).
Update: I can’t.
I don’t think I’ll have enough time to make 3 completed games, so I’ll start with the Talonlang game, then (if I have time) I’ll make the Ruby and Go ones.
Also, the Ruby gems package manager gives me a lot of problems. Still, I just can’t get Raylib to work, and I doubt that SDL will; by the way I have the dev packages of SDL2 and Raylib installed (the latter as a static library), I use Linux (more specifically Mint) and use Windows only for C# stuff, basic C/C++ programming with CYGWIN, or GameMaker Studio stuff (that I can’t get to work, but I think I’m derailing too much).
Lastly, I couldn’t come up with any ideas for the games. I think I’ll just generate some ideas using a generator and select the ones I find interesting.