Here's a Doom WAD I made one day in 2013 and then abandoned for almost exactly 6 years. The other day I remembered it existed, dug it out of a dusty old backup of a long-dead laptop, and cleaned it up a bit.
LUMBERJACK.WAD: You are in an open space filled with trees. Somewhere there is a chainsaw. You can use it to cut the trees down.
TREEPUNCHER.WAD: Inspired by an earlier, buggy version of the same level, it's basically the same except you can also destroy trees by punching them.
Requires a ZDoom-compatible source port (such as gzdoom) and DOOM2.WAD as a base. (I used zdoom to develop it originally, because it was 2013.) It'll also work with Freedoom Phase 2 but it just doesn't feel the same.
I feel like it's appropriate to submit to The Great Resurrection Game Jam more than a year late?
So this is just a single level (works with any doom port i guess, you'll need a doom2 wad to play it)
i had this idea of putting weird things behind doors
and you don't know what is behind the door
like maybe it will kill you, maybe it will be a bonus, maybe it will do nothing etc
so it's sort of a luck and memory based thing