

10 years is not that long ago, it’s 2016!
They have Radeon HD 6xxx series, circa 2011. OpenGL 4.5 certified, which is basically the latest ignoring 4.6 which is just 4.5 but with some Vulkan features shittily backported.
I had Intel Graphics 4400 (Haswell refresh) circa 2014. And also NoVideo Gayforce 820m, 2013. Both ran the Unity game just fine. Well, just barely, but 60 FPS (capped, never tried vsync off). I would consider 24 FPS playable, so that’s a win for sure.
Besides, some devices still sold today which may run Unity RimWorld at least with enough fuckery (like ARM Chromebooks) only have GL 4.5, with the oldest chip designs themselves being exactly from 10 years ago.












You said “Linux”. Everything userland for that uses https://mesa3d.org/ . The current version supports everything mentioned. I am still sad they removed loaders for nuggets like SiS chips, though.
This nugget released in 2005, believe it or not, and runs on 1995 computers.
Also, if one had access to a Unix workstation or server+client, they could build WarMUX or something similar. This game specifically died around 2012, been in dev since a while (2004? close enough), and the most popular release is 0.9 is from 2009 (1.0 around 2010 I am guessing). It may also run on a boring old x86 box, and I have 86box the emulator, but can’t be bothered to test just for this argument.
Doesn’t mean there’s not a single soul running Unity games on them (as much as I hate Unity, Rimworld is one of the best examples of a good Unity game).