Best Games by Popularity: U

No other multiplayer-focused action game has this much to offer. Read the Review

Koei's naval combat game will take place online.

Unreal Tournament is the most complete first-person shooter available. Read the Review

Unreal Tournament 3 is the next installment in Epic Games' popular sci-fi shooter series. Read the Review

UFO Online - Fight for Earth is a tactical 3D browser-based game.

The fourth iteration of Epic's popular cross-platform game engine makes it possible to release fully featured games without ever writing a line of code.

UFO: Afterlight is a strategy game in which you take control of ground troops and manage resources in an effort to defend your Mars base from enemy robots. Read the Review

Graphical flaws aside, USAF continues a revered tradition of accessible and diverse Jane's flight simulations. Read the Review

Despite some bright spots, UFO: Aftermath isn't a fitting sequel to X-COM, and, on its own merits, it just isn't a good tactical combat simulator. Read the Review

In its current form, Ultima Online is a major disappointment. Read the Review

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Even now, The Ultimate Doom remains ultimately playable. Read the Review