I like to run a sandbox campaign, also known as a point crawl, where there's a general goal and factions but players can interact and manipulate stuff to solve the goal in their own way.

One of the best games, it's insane with mods too. I run with about 25 mods

I'm looking more for pre-made RPGs rather than frameworks, but tell me more. What did that mean to you? No players could cast magic, or there was a risk to it?