As far as RTS games go there is Starcraft 2 and I guess.....Starcraft 2?
Some more strategy games you might want to look into are Europa Universalis 4 and Endless Legend.
The first half dozen of these will be the most graphically intensive:
Witcher 3
The Division
GTA 5
MGS 5
Fallout 4
Middle Earth: Shadows of Mordor
Dragon Age: Inquisition
Mass Effect Trilogy
The Witness
XCOM: Enemy Unknown
Bioshock Infinite
Assassins Creed: Black Flag
Max Payne 3
Portal 1 & 2
Deus Ex: Human Revolution
Batman: Arkham Asylum and Arkham City
For puzzle and platform games your best bet is to look up games on Steam and see if any look interesting. Here is a list of a few:
Puzzle
Platformers
Last edited by Daer; 04-14-2016 at 07:53 PM.