Steam is available for all major Linux distributions.

Which Steam games run on Linux?

The Steam store also has a lot of good games listed for the Linux platform.
…
Best Strategy Games on Steam For Linux Machines

• Sid Meier’s Civilization V. Sid Meier’s Civilization V is one of the best-rated strategy game available for PC. …
• Total War: Warhammer. …
• Bomber Crew. …
• Age of Wonders III. …
• Cities: Skylines. …
• XCOM 2. …
• Dota 2.

Can I install Steam on Linux?

The Steam client is now available to download for free from the Ubuntu Software Center. … With Steam distribution on Windows, Mac OS, and now Linux, plus the buy-once, play-anywhere promise of Steam Play, our games are available to everyone, regardless what type of computer they’re running.