Based on that, I'd say if it takes anywhere between 5-15 minutes before your game crashes during a stress-test, your (modded) game is pretty stable. Of course the longer it lasts the more stable it is, but in your case, at 15 it could probably be considered stable, and at (minimum) 5 it's probably good enough already. I have no experience stress-testing though, so take that with a grain of salt :P As a general approach, personally I recommend going through the Packs, picking out a few that you like, and then installing them one by one. Just skip mods that you don't want from these packs. You can use MO's categories in the same as with the STEP guide, just using the Packs' categories, mod order, and any instructions. Makes the process straight-forward and more modular, so troubleshooting is easier. Also don't forget to check the Conflicts tab in MO for any mods with the lightning icon. Personally I really like REGS and MMO: https://wiki.step-project.com/Pack:Modular_Morrowloot_Overhaul https://wiki.step-project.com/Pack:Explorers_Guide