How to run Wine processes concurrently?

I’m having to use “kill all wine processes” before playing a lot of games, but I want to keep my other wine processes running! If I try to launch otherwise, the game won’t run, or after starting the game, the other wine programs won’t launch.

EDIT: I was able to get different prefixes working with playonlinux (and also learned how to make my own) and this seems to be a workaround.