Some time ago I posted about Labyrinth Lord and other retro clones based on old-school D&D. I didn’t know that the creators of Labyrinth Lord also released Mutant Future, a game based on LL rules but set in a post-apocalyptic future.
The 162-page book can be downloaded for free from the Goblinoid Games website.
In Mutant Future you can play everything from a normal human to a mutant plant or even an android. The rules are a bit on the crunchy side which was expected, but if that doesn’t frighten you off, Mutant Future may be worth a look.