I play all kinds of games (mostly source engine games like Cs:Go , L4D2, etc) and I also do some mapping on L4D2 and a few other source games (I did make alot of skins, but I stopped reskinning since I got what I wanted)
I'm daily active on steam. You can add me on steam so we can play together(just click the signature), I also play League of Legends and I use steam overlay to chat with my friends while playing League, it's comfortable that way :p
I don't trade in steam, but I do keep my trading cards