Scientific lab scene with Hazard Suit soldier in Half-Life Opposing Force Redux mod

Aleph One Marathon Trilogy is an open-source engine built from the Marathon 2: Durandal source code released by Bungie. It allows you to run and modernize the classic Marathon trilogy (Marathon, Marathon 2, Infinity) on modern PCs, with graphics improvements, online multiplayer, and mod support.

H5X — a mod for Heroes of Might & Magic V inspired by the Heroes 5.5 mod and created for fun, replayability, and uniqueness, rather than perfectly balanced PvP, although balance isn't completely abandoned.

Tainted is an 8-map campaign for Quake with cooperative play support, built on the Copper mod. The maps stand out for their thoughtful design, varied locations, and intense combat, culminating in a large-scale finale.

Half-Life: Ultimate Attack Remod is a rework of an older mod with bug fixes and improvements. The mod adds a Black Ops campaign, new NPCs and weapons from Opposing Force, a red HUD, and night vision.

A 400x400 castle builder map featuring a wealth of intricate details and a beautiful landscape. It comes in two versions: (P) Peaceful and (S) Strategic, where in the Strategic version you must defeat numerous enemies before you can begin building your city!