@aeva Honestly it's not like people don't care about FOSS games, but there aren't that many notable ones coming out each year. There are some great ones like Mindustry and Veloren but there was never a huge movement of open source games. Most of them are recreations of old games (Unciv, OpenTTD) or honestly games that aren't very good compared to what's in the market. I say this as someone who loves these.
It's a funding issue for sure, but there aren't many that would fund something for free.