If you haven't heard of Outcast before then you are either young or living under a rock, possibly both! Outcast was a revolutionary open-world action-adventure game back in the day. Outcast Reboot HD is promising Linux support at a hefty stretch goal.
The game is now on Kickstarter looking to get at least $600,000 with a goal of $750,000 for Linux/Mac support + extras. It may sound like a lot, but with 27 days to go it is already reaching nearly $150K! It's also nice to see Linux & Mac lumped together rather than Linux being bumped to even higher goals.
Check out the Outcast Reboot HD kickstarter here.
Sadly they are another developer using things like "beta access" as higher rewards, that is starting to bug me more and more, since you are supporting them directly by pledging, don't you think everyone should get beta access as without each pledge they wouldn't make it.
I contacted the developers 3 days ago to ask when a Linux version would be expected, and no answer as of yet sadly.
Outcast is an action-adventure game developed in 1999 for the PC. It was one of the first 3d games to offer non-linear gameplay, free-roaming environments, combats against clever reactive AI, excellent voice acting, symphonic music, and 20+ hours of highly engrossing adventure.