This is a Game Design post and not ORK related so I post it in General section.
I was thinking about some mechanics and for example, I'm implementing an enchanting system, so you have a scroll and you have a chance to enchant your weapon but if it fails you lose your weapon, this is pretty easy to exploit, you just save your game before the enchant, and if it fails you just load back.
I thought some solutions but not yet had a chance to succeed. One is to have an auto-save everytime someone uses this mechanic, but this is a no-go because you need to have only 1 save slot and that's a problem because someone could just have a brother that plays on the same pc and each one has it save.
Then I thought about each character have 1 slot, but I don't know if and how that could be possible.