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72% of devs believe Steam has a monopoly on PC games, according to study
(www.gamesindustry.biz)
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
Heroic Launcher works for GOG, Epic and Prime games.
Yes but that is a third party solution to those platforms refusing to support Linux. Good on the people developing Heroic, but Steam has native support.