+1 This needs to exist if it doesn't yet!

Maybe an issue would be people not all having the same type of hardware though? Maybe you target an emulator. (Some Fantasy Consoles sort of count here?)

I haven't looked expensively but some of the retro themed jams were missing the "spirit" I was expecting.

I did a Nokia jam a while back — monochrome, beeps — and I remember being kind of annoyed that the rules technically allowed 3D Unity games as long as they followed resolution and color palette.

(A 3D cube spinning on a TI calculator is a different matter ;)