Open rocky arena environment in Quake fan game LibreQuake

Venturous is a large-scale total conversion for Doom inspired by adventure films and games like Indiana Jones and Tomb Raider. 22 maps, 6 episodes, dozens of weapons and enemies, gloomy temples and catacombs. You play as an archaeologist foiling Nazi plans to open a path to Atlantis and seize ancient artifacts.

Half-Life: Zombie Edition - a unique mod where you play as a zombie or headcrab in the Half-Life world, featuring a mutation system, three classes, and upgrades. This perspective from the enemy's side, the one you used to fight against, makes the gameplay unlike anything else.

Median XL is the largest modification for Diablo II, enhancing the original gameplay with thousands of new items, unique skills for all classes, and advanced endgame content. It also features extensive engine improvements and deep character customization.

ZMenu FlatOut 2 + Chaos Mod - a powerful in-game trainer for FlatOut 2 that offers a wide range of features, from basic options like god mode and unlimited nitro to more advanced tools such as mouse-controlled camera rotation, first-person view, and mid-air vehicle control.

OldUnreal's 227 Patch is an unofficial fan patch for Unreal that has become the standard for all fans of the game. It fixes bugs, brings numerous improvements, adds support for modern systems and hardware, while not changing the gameplay and maintaining compatibility with old mods and maps.