
The working title is "Mutant Apocalypse" but that could change. I'm developing this with Megazeux, after I discovered it was possible. Megazeux is an incredibly powerful ANSII game creation engine, but I have complete control over the characters.
Anyway, right now the hero can run around part of a city. The city and buildings' floor plans are realistic, and there are literally thousands of zombie/mutants to destroy.
You have regular machine-gun ammo, and 2 kinds of bombs. You start with some lives and can collect more. Ammo is everywhere, but the giant caches are well-guarded. You might be able to grab 2000 rounds easily enough, but you'll need to use that strategically to gain the 10,000 you'll need. You can collect gems and coins for extra points.

Features finished:
50% of the City, including:
-dozens of buildings (apartment complexes, a giant shopping mall, alleys, etc)
-hives of zombies waiting to attack
-mobs of mutants set on search and destroy
-tons of powerups
-intense difficulty
-decent level of realism
-keys which lock certain areas (including the shopping mall, a zombie movie staple)