challenge accepted!
just contributed is my second 20min put together insane minimalism level.
challenge accepted!
Whaat? We can submit more than 1 level? Then challenge accepted! I'll submit 2 more 20 min put together levels!
Ah, okay. Good to know.
There is a patch that allows a Keen 1 mod to have 32 levels, but I think it's possible to have much more levels than that (I don't know how much, though).
I think the limitating factor is that the game uses a fixed-size array (16 words = 32 bytes) to indicate which levels are already completed on the world map. The patch mentioned above probably makes the game interpret the 16 words as 32 bytes, thus allowing you to use 32 levels. But within those 16 bytes you have 128 bits, so you could push the limits even forther with some advanced patching. The game itself can load levels numbered from 01 to 99 with no further patching required, so using up to 99 levels would be possible. It's really just a matter of how much you want to mess up the code.