Dungeon Master gameplay (PC Game, 1987)
Recommended Files

Opposing Force: EnlightenedHalf-Life (1998)
Opposing Force: Enlightened - a mod for Half-Life: Opposing Force that adds a lot of new weapons, improves lighting, effects, and atmosphere of the original campaign, making it visually more modern without changing the storyline.

DOOM 64: Unseen Evil Ultra NightmareDoom (1993)
A brand-new difficulty created based on the Ultra Nightmare difficulty and ported for the Doom 64: Unseen Evil! mod.

Half-Life Decay: Solo MissionHalf-Life (1998)
Half‑Life: Decay: Solo Mission is a Half‑Life mod that ports all chapters of the PS2‑exclusive expansion Half‑Life: Decay into a fully playable single‑player campaign while preserving the original gameplay.

The Zombie Panic! Map PackHalf-Life (1998)
A map pack for Zombie Panic! It contains the best maps created by the community over the years of the mod's existence.

REBELLION: BrutalizedHalf-Life (1998)
REBELLION: Brutalized - an adaptation of the Rebellion mod for Brutal Half-Life. The game features some weapons and items from Brutal Half-Life, as well as soldiers armed with M4A1, M249, and sniper rifles.