not i'm not to sure if any one has ever looked at this side of gaming but an awful lot of games are made with the unreal engine, these include free-to-play to the top selling games. i noticed about a year ago the unreal logo was on over 75% of my game boxes but i will admit i don't have lot of boxes so i decide to check all the games i had and yes it even more then 75% i would say close to 90%, these games are a wide range of games, the unreal engine isn't just used for pc games it makes games for every platform. now the last engine game out in 2007 and the one before that was release about 2002 and even some games release this year were made with the older engine. well was showcased at e3 but was not really shown as its not a game its a development tool so i thought i would bring it to every one at polite and friendlies attention and we can hope to see some really nice games from it.
The Unreal 3 engine is pretty good, for its' age. Though one thing that has always bugged me is that it does very poorly with multi-monitor games. If the developers don;t think of multi-mon from the start, any after-release solution is simply aweful. I really hope they do a better job with Unreal 4
now surely the multi screen issue is the developers issue rather than unreal's but i suppose that if the unreal engine took in to account multi screen it would benefit those with multi screens but be nothing more than extra processing or files sizes for those that don't
Nah, it's something do do with how it handles super-wide FOV and different LODs. Most any other game that has no support out-of-the-box behaves fine when someone makes a fix. U3 games have always been a problem.