A micro library for creating games as simple as for old consoles (like NES or SNES) would come in handy — ultra light, object-oriented, using events (similar in design to the LCL component ecosystem), very easy to use. It is about basic functionality — image rendering, sprite support, sound playing, keyboard, mouse and controller support. Such a minimum.
Someday I would like to write a retro style game (something like "The Legend of Zelda: A Link to the Past") and I'll probably write something like that for Free Pascal and Windows (using OpenGL and OpenAL). But I don't know when.