http://www.skyrim-beautification-project.com/unreal/
The legendary first-person shooter from 1998 that brought us the Unreal-Engine. Developed by Epic MegaGames, now known as Epic Games, and published by GT Interactive. Unreal originally launched with support for 3DFX Voodoo cards, but D3D and OpenGL were later added via patches. The current Steam and GOG version, Unreal Gold, comes pre-patched and includes the "Return to Na Pali" expansion. The game runs perfectly well on modern systems, but the graphics which were revolutionary in 1998, are not exactly revolutionary today. Adding HD textures and skins makes the game much more appealing, even though it still lacks object detail and have very simple level design compared to today's games.
HD Textures:

Original:
