This is a multiplatform game and users can play it on Windows and Mac OS also
Champions of Regnum, a new free-to-play MMORPG launched on Steam, will also be available for the Linux platform.Up until a few days ago, there weren't any multiplatform titles that also included Linux, but the game Champions of Regnum has joined a select group of titles that work on Linux, Windows, and Mac OS.
“Choose your Realm and engage in the most dynamic player driven battlefield available on any MMO. Fight for the Alsius Empire, protect the woods of Syrtis or avenge the Brotherhood of Ignis,” states the official announcement.
Being a free-to-play MMORPG means that you won't have to pay anything in order to play it, but there are some starter packs available, New Recruit Start Pack and XP Starter Pack, ready to help you progress more quickly through the story.
More details about this new Linux game can be found on the official Steam website.