Intense gore and chaos in Doom II mod Brutal Doom

War Location: Global Crisis is a mod for Yuri's Revenge that brings elements from Command & Conquer: Generals – Zero Hour into the game. The mod is not a direct remake of Generals, but offers an alternative universe with a unique storyline that combines elements from both original games.

Black Mesa: Classic is an ambitious fan project aimed at porting the Black Mesa remake (on the Source engine) back to the original GoldSrc engine from Half-Life. The mod restores the atmosphere of the original game while adding a number of improvements and maintaining low system requirements.

Overclocked is a large-scale modpack for Duke Nukem Zero Hour: Recompiled that fundamentally reimagines the game. It turns the original third-person action game into a full first-person shooter that feels close to the classic Duke Nukem 3D experience.

VorpalFix — a patch for the American McGee's Alice remaster (2011) that fixes technical bugs and adds quality-of-life improvements without interfering with the original files and art style. It fixes audio, menu, and widescreen bugs, improves stability, controls, graphics, and compatibility.

DOOB is a deliberately "terrible" mod for DOOM — and that's exactly what makes it wonderful. The game's graphics use intentional primitivism that transforms the gritty shooter into an absurd comedy.