Maybe a friends to create scenarios with them?
But it may need a lot of reloading at start, if you make special custom world and hack some numbers in savefiles.

I'm making now a ruins planet like Loulan, where you start as soldier and looking for ammo and supplies, when fighting with spiders and bomberbots, evading traps and meteors on the way.

Or an underground labyrinth with logical traps. May not even need the events scripting. Need a lot of digging and terrain sculpting for saving of things limit.

There's also scenarios about alien planet, but this is so singleplaying and for linear events.