120
Valve faces a £656 million lawsuit in the UK for 'overcharging 14 million PC gamers'
(www.gamingonlinux.com)
Steam is a video game digital distribution service by Valve.
Steam News | Steam Beta Client news
Useful tools:
SteamDB
SteamCharts
Issue tracker for Linux version of Steam
That's not even true is it? I'm pretty sure you can buy DLC for various steam games on places like humble bundle and they activate on steam