A modder has recreated the beginning of Epic's original Unreal in Unreal Engine 4, and added full support for VR. As it's one of the best and most atmospheric FPSs of all time, this is very good news.
You can check out the mod here. Unreal VR is an open-source mod for Unreal Engine 4 of the original Unreal from 1998 by Epic, the game that gave their popular engine its name. It has full support for VR, which we can imagine being amazing. You can totally play it without VR too, and the game has been graphically enhanced with the move to Unreal Engine 4, although this is also when the catches start.
For starters, its not the full game, just the Vortex Rikers level which is entirely indoors. You can freely explore the awesome level and marvel at the scenery, but as it's just an early recreation the mod doesn't feature anything to actually do in the level - so no guns, enemies, cutscenes, NPCs, items or working switches. In other words, it's very early days yet for the mod - but it's impressive nonetheless.
The first Unreal, which was attached to the first Unreal Engine, was developed by Epic (Gears of War 1-3) and Digital Extremes (current developers of Warframe) and released in 1998, the same year as Half-Life. It was praised for its graphics and atmosphere, although the multiplayer couldn't compete with the previous year's Quake II.