Nvidia has been expanding its Shield gaming library quite aggressively recently and there are definitely quite a few interesting titles available including Doom 3: BFG Edition, War Thunder, Half-Life 2: Episode One, Star Wars: Knights Of The Old Republic and more.
With the launch of Nvidia Android TV based Shield console, Nvidia is adding even more new games and now Half-Life 2: Episode Two, Q.U.B.E Director's Cut, Never Alone, Funk of Titans, Frozen Synapse Prime, Game of Thrones HD, Machinarium and couple of other games are also available.
At its Shield Android hub store, Nvidia has also listed a couple of games as incoming, including Metal Gear Rising: Revengeance, Resident Evil 5 and Borderlands 2 so there will be plenty of good titles in the future as well.