The Hero's Path

WBB, you need to start over.

Thank you! So, here's a question: can I install two versions (1.4 and 1.5) at the same time?
I'm just afraid to experiment – my son has already made a lot of progress, and I wouldn't want to ruin his save. But I want to play the updated version myself. I've been wanting to try playing as a Warlock on Chaos difficulty for a while...?