Years after release it seems The Silent Age quietly gained a Linux version that you can now find on Steam.
They've been wanting to do Linux support since 2015 although back in 2016 they were having issues with "middleware". It seems a few days ago, they actually put the Linux version up on Steam and users have been reporting it working well.
It's not yet advertised and they've seemingly said nothing about it but it's great to see it finally live.
More about it:
Help Joe as he travels between the groovy present of 1972 and the apocalyptic future of 2012 to discover the truth behind humankind’s extinction—a quest entrusted to him by a dying man from the future. Use your portable time travel device to solve puzzles that bring you closer to answers and saving humanity.
Winner of the 2013 Casual Connect Indie Prize and applauded for its deep story, clever puzzles, and radically simple navigation and art style, The Silent Age is an unforgettable experience. Can you, a simple janitor and literally, “the average Joe,” save humankind?
Hopefully when more users tell them how it's working, they can get it properly advertised as supporting Linux. While the delay was quite long, good things come to those who wait it seems.
Hat tip to dubigrasu.