Half-Life

Portal: Prelude is an unofficial prequel to Portal, depicting events before the activation of GLaDOS at Aperture Science, back when testing was conducted by human staff. It features 19 test chambers and additional trials that reveal the complex's backstory and the launch of GLaDOS.

Dune Wars is a total conversion for Civilization IV: Beyond the Sword set in Frank Herbert's universe. Nine factions fight for Arrakis and the spice, surviving amid deserts and sandworms. Unique units, a new tech tree, religions, and interplanetary trade make it a grand strategy about dominion over Dune.

Doom: Comic '96 is a gameplay mod for Doom inspired by the promotional Doom comic that was distributed at E3 in 1996. It transforms the original Doom into a more dynamic and expressive game, with reworked weapons, enhanced enemies, and visual/sound effects stylized after the comic.

Renegade X: Firestorm is a tactical shooter based on Tiberian Sun, where GDI and Nod fight for control over Tiberium zones. Players can expect large maps, vehicles from the Second Tiberium War, mobile bases, capture of key points, and dynamic battles with strategic elements.

Diamond Dragon is a stylish gameplay mod for Doom II in a cyberpunk aesthetic, where you play as Kiwi, a cybernetic catgirl hunter. The mod combines fast-paced action, firearms, and a katana, allowing you to freely choose your combat style — from pure melee to shooter.