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Steam Client Update - September 11th
(store.steampowered.com)
Steam is a video game digital distribution service by Valve.
Steam News | Steam Beta Client news
Useful tools:
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Issue tracker for Linux version of Steam
As someone with a little sister who id love to share my hobby with, Steam Family sounds like a pretty great feature.
I've been using it in the Beta for a while now and its worked flawlessly for us!