Although Unreal is old it's still a brilliant game. One the best FPS created, in my opinion. You should definitely give it a try if you hadn't yet. But you should keep in mind that unlike most modern First Person Shooters it's long and difficult.
Game: Balanced Annihilation
Maybe less hardcore StarCraft game, you're learning to play a real RTS is recommended as some Spring Mod Balanced Annihilation or Zero-K. Although Supreme Commander that sige also the same gameplay.
Balanced Annihilation is very similar and almost equal to Total Annihilation, a very old play games, but very good.
Game: Frogatto & Friends
This game it's very funny, the gameplay it's awesome type "OlSchool" and the history it's funny, but the most in this game is the gameplay, music and graphics.
This game is excellent, the IA Work perfectly and have diferent modes(Hard, Normal and Easy). The Gameplay the this games is simply and awesome, The Models it's good, but can improve.
And the accion it's Excellent, my favorite is de Persian =].
Thanks, that was fast!