Games to play with Mouse and Keyboard

I bought a new PC for my work and I'm looking for a few good games to test my machine performance.

I don't have and I'm not going to buy a game a controller for my PC so I'm looking for good games that can be played with M/K but no FPS or RTS, please.

@pcty:

Sports games or racing games?

Any RPG?

Skyrim (with Mods)
Tomb Raider (2013)
The Witcher 2

I play 99% of my games on a m/kb. The only thing I avoid on m/kb is fighting games. I think you'll be perfectly fine with every game, but the fighting genre. With that said, games to test your performance? I'd go with what @Tokeism suggested.

@intotheminx: I just can't play adventure/platformers or racing games with m/k it just feels weird..

@Tokeism: I'm playing Witcher 2 now, it works fine with m/k but Tomb Raider just feels strange specially the platform areas. Thank you.

@FelipeInside: playing Witcher 2 and FFVII now but I've played those games before and they are not really good benchmarks.

What do you mean by Benchmarks?

As in graphics performance?

If so, Witcher 2 is one of the heaviest games on the planet, it's a benchmark for sure. Others are Metro Last Light and Crysis 3.