All kinds, really.

[She says this with all the pride she can while still trying to come across as mature and respectable.]

Leanbox especially focuses mostly on FPS games with lots of focus on cooperative and online play, so those tend to be the most popular kinds. However, we do have a varied selection of all other game genres, like RPGs, sports, and rhythm games. Whether it's popular or not, you're still sure to find something enjoyable.