Ashes 2063 is a TC mod for Doom 2 made with the GZDoom engine, or what it started as, since it is practically an independent game that takes us to an excellently themed and well-designed post-apocalyptic world. A mod that you must play if you like classic FPS and this type of setting. Currently it consists of 2 episodes (plus an expansion of the first one), and it can be downloaded as a stand-alone version, that is, you download it and you can play, you don't need anything else.
Download:
https://www.moddb.com/mods/ashes-2063/d ... ersion-101