Unloved 1.0

DOOM is one of the oldest FPSes in existence, and its engine is famously so robust that it can run on pretty much anything and also create pretty much anything.  From FPSes to RPGs to companions to a city living game, it has a ton of different mods and maps that can all do different things. One of many is Unloved.

To install Unloved, you need to have ZDoom and move the WAD file into the GZDoom folder, which is pretty par for the course for DOOM maps.

This is technically a small mapset, clocking in at only five levels, the first of which is a hub level that ties everything together. This is an incredibly dark and atmospheric adventure with an implied narrative that you experience as you play it. All you're given is that you woke up in a house alone. You hit a few buttons and a secret passageway opens, and suddenly, you're wandering through disturbing alternate realities.

This is filled with custom monsters that are expertly balanced as well. They're fair, but the game doesn't play like a DOOM game. It plays more like a horror game. It's incredibly slow-paced, and weapons are also introduced very slowly. 

However, this map isn't trying to be DOOM. It's trying to be a horror adventure game, and it succeeds greatly at that. If you're looking for something different in the DOOM engine, then you should definitely give Unloved a download. This is one of the most unique mapsets out there.