Duke-RT - Duke Nukem 3D with path-tracing
Recommended Files

D3HDP - DooM 3 Essential HD PackDoom 3 (2004)
D3HDP (Doom 3 Essential HD Pack) is a graphics modification for Doom 3, Resurrection of Evil, and The Lost Mission. The pack improves textures, materials, lighting, and effects, fixes maps, and adds HD UI elements. The mod preserves the original gameplay and is fully compatible with the vanilla game and various ports.

FreemanAPIHalf-Life (1998)
FreemanAPI - an easy-to-use API for implementing movement mechanics from the original Half-Life and Half-Life 2 in other games.

HoMM3 ERA STALKERHeroes of Might and Magic III (1999)
HoMM3 ERA STALKER is a large story-driven XL map-mod for HoMM3, inspired by the STALKER game series but not tied to any specific installment. The plot is only partially connected to the original to maintain recognizability, while being fully adapted to a fantasy world.

FO2 Taskbar Highlight + SoundFlatOut 2 (2006)
A mod for FlatOut 2 that notifies you about events happening in the lobby when the game is minimized.

Afraid of Monsters: Dark Assistance BetaHalf-Life (1998)
Afraid of Monsters: Dark Assistance is a cooperative version of the cult horror mod for Half-Life. You play as drug addict David Leatherhoff, who battles hallucinations and monsters in his own distorted mind. The mod offers both cooperative and single-player gameplay, improved graphics, new weapons, and redesigned maps.

Brutal Half-Life 25th Anniversary PatchHalf-Life (1998)
Patch for the Brutal Half-Life mod that adds a new menu, font, and loading screen, now in HD quality, featuring an animated logo and more.

C&C World War IICommand & Conquer: Generals (2003)
C&C World War II is a total conversion for Generals Zero Hour, transporting the game to World War II. The mod features 4 factions with three specializations each, a unique vehicle development system by years, new maps, voice acting and sounds, improved AI, and a deep focus on tactics and combat logistics.