Unable to play games on Steam.
Unable to play games on Steam.
I'm running low on ideas... It seems the waiting game is the best option. Check this link I found—it mentions Brawlhalla will get updated for 64-bit support soon on OS X Catalina. https://www.macgamerhq.com/opinion/32-bit-mac-games/ This depends on Catalina running 64-bit, which it does. Brawlhalla is a 32-bit title and will be fixed to work on that platform soon! So we're just holding our breath now. In the end, you'll find a solution that makes gaming enjoyable again.
If you're eager, you could revert to OS X Mojave 10.14, though I'm not sure how to do that.
The Catalina 64-bit version is the only one available for sure.