Just to stand in solidarity with my fellow macOS buddies -- I normally use a computer running macOS 12, and both Dangeresque & Hide n' Seek run perfectly on that computer. However, when I saw this, I just wanted to do some checkin', so I used a computer running 10.10.5, and it told me I needed a computer that was AT LEAST running 10.13. So that's a for-sure-- macOS 10.8 would be too old, so that specification info can be changed on Steam. However, when I tried running both Dangeresque & Hide n' Seek on a computer running 10.13.6, I experienced this same force-quitting issue.
Opening it up in the Terminal seems to confirm your suspicions that there's some GPU issues: https://www.skyetheguy.com/dangerfxsque.txt
-- On the other hand, on all three macOS devices tested, the WEB version of Halloween Hide n' Seek works perfectly. So, there's that. Not like it would be feasible to have people load this game online, but maybe that's indicative of it not being a lost cause.