Rpg games with guns

Im looking for some rpg games that have guns in it.As long as it has skill trees and levels I'm ok with it. Also I'm looking for mac compatible games but if they are none then ill go with pc games

Fallout 3 and Fallout New Vegas.

Also, Borderlands and Borderlands 2.

Arcanum

Deus Ex

Deus Ex: HR

Mass Effect 1, 2 and 3

Borderlands 1, 2 and pre-sequal (coming soon)

Fallout 1, 2, 3 and New Veges

Grim Dawn (early access)

Alpha Protocol

Destiny and Far Cry 3 haven't been mentioned yet

Destiny isn't on PC.

Yet.

woops, i missed that part. I would still recomend Far Cry 3 and Far Cry 3 Blood Dragon though

I was going to mention Far cry 3. You beat me to it :P

S.T.A.L.K.E.R games.

yeah i am fast that way :P

Big guns? If you need an MMO-RPG, get Firefall. They got a ver.1.1 patch right now and they've added Elemental damage to their guns (poison, electricity, plasma, etc.)