Asset - Extension Looking for a physics engine that allows slow motion



Hello! I'm working on a POC for a time-manipulation game, and the physics engine is working great at giving me the feel I'm looking for, but I'm looking for a way to make objects travel in slow motion.

GM physics operates in a blackbox, and it's fully independent of room_speed, so that "easy-button" isn't available to me.

I have some ideas about how to implement it within the constraints of GameMaker, but better still would be using an extension that provides top-down object physics, while allowing me to manipulate how far an object travels over time, regardless of its physical properties.