Hi everyone, I started playing IVAN again recently and decided to try the CVS download on this site with the 64-bit fixes. Everything compiled great, but the game crashed when going up and down dungeons. I've attached a small patch that fixes the issue. I haven't tested too much yet, I'll let you know if there's more problems with it.
I don't know if the problem is only on linux or only on 64-bit, but that's the platform I had problems on.
Thanks for keeping this site going!