R6 Vegas isn't using UE3 and wikipedia isn't a great valuable source because right now I could just modify it. For General Information wiki is cool, if you want specific info go ask the dev yourself and meet them.
Plus, if you do care about "who bought UE3 licenses", Ubisoft isn't on Epic Games main page so they still have 2.5.
http://www.beyondunreal.com/articles/unreal-engine-licensees/ <-- I'm managing this list mostly. All but one or two have been verified 100% legitimate Unreal Engine. It is missing a lot of UE3 titles though.
On the Epic Games website:
Silicon Knights to Exclusively Use Unreal Engine 3 - May 10th, 2005
In a story broken by IGN.com it was announced today that Unreal Engine 3 will be used exclusively in all next-generation games developed by Silicon Knights, "creators of award winning titles such as Blood Omen: Legacy of Kain, Eternal Darkness: Sanity’s Requiem and Metal Gear Solid: The Twin Snakes". Silicon Knights says that "Unreal Engine 3 is by far the best technology for next generation systems". IGN, one of the world's top gaming sites says that "The Unreal Engine 3 has quickly surpassed RenderWare and other similar technologies as the most sought after backbone for next-generation games". Click here to read the actual press release.
And recently on IGN
New Details Emerge in Silicon Knights vs. Epic
How expensive is Unreal Engine 3? If you have to ask, you probably can't afford it.
by Ryan Geddes
New Details Emerge in Silicon Knights vs. Epic
How expensive is Unreal Engine 3? If you have to ask, you probably can't afford it.
by Ryan Geddes
January 25, 2008 - Silicon Knights' legal case against Epic Games continues to plow through the courts, flinging up all sorts of interesting info in its wake.
Referring to legal documents, the gaming business web site Gamasutra reports today that the Too Human developer paid Epic $750,000 for the right to use Unreal Engine 3, the high-tech 3D codebase Silicon Knights now accuses Epic of under-delivering on.
The ubiquitous engine's price tag came to light as part of a protective court order SK recently sought to prevent Epic from combing through its Too Human code. Confused yet? Let's back up.
Back in July, SK announced it was suing Epic because UE3 did not work as Epic represented it would and that "Epic has been unable or unwilling" to fix the problems with the engine. SK president Denis Dyack also accused Epic of selling its unfinished middleware to developers and using those companies' licensing fees to fund Gears of War - at the expense of fixing Unreal Engine 3's alleged problems.
Along the way unrelated UE3 licensees have been swept up in the case, according to ShackNews, with multiple developers receiving subpoenas from the court to share details of their contracts with Epic.
While it struggled with UE3, SK has said it worked to develop its own solutions to software engineering problems in Too Human, inventing a new 3D camera system along the way. That new system, according to court documents cited by Gamasutra, is soon to be patented.
Hence SK's reluctance to let Epic CEO Tim Sweeney crack open its Too Human code and poke around (Sweeney's no corporate suit - he's a hardcore programmer who wrote the original Unreal engine).
"Epic has not demonstrated any reason," Gamasutra quotes SK's court document as saying, "why the more common method of analysis of proprietary information - the use of outside experts - will not be sufficient in this action."
The judge in the case agreed and told Epic it must reveal the identities of its employees who were requesting to view the code, along with affidavits that would help the court decide if those peoples' involvement would put SK at a competitive disadvantage.
Neither side appears to be budging in the case – Epic has repeatedly stood by its engine in comments to IGN and other gaming publications, and Silicon Knights' Dyack has shown no public signs of backing off his allegations.