Why make games for Linux if they don't sell? Because the nerds are just grateful to get something that works
And when nerds are your audience, everything is easier
Feature Video games are the new Hollywood, complete with celebrities and hyped blockbusters like Cyberpunk 2077. In 2019, they made half as much again as the movie sector's paltry $101bn. You know who won't see much of that dough? Desktop Linux games developers....