Simply put, they don’t need to. Linux might be a tiny percentage of the market but thanks largely to steam deck it is growing, which means it’s starting to become more worth it for companies to make sure their game works on it.

Secondly, thanks to proton, some games don’t even need to be modified to support Linux or the steam deck. I play plenty of games that are listed as unplayable or unverified on my steam deck, and sometimes it is listed that way because of one or two minor things that haven’t broken the game for me.

And lastly, as every major company has found out one by one, it’s worth it for them to pay the 30% to get access to steam users.