

without new drivers
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.
Imagine someone demanding in 2005 that a new game should run on hardware from 1995.
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.
The game never supported {ARM Chromebooks} officially
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).













Not everyone would to pay 100 american freedoms for a game. Gaming is usually a way to relax from debt (ignoring CS:GO/2 players), would be weird to pay for that.