No, I've never dabbled in multiplayer (even though I really want to). Basically after the players turn I take away control to let all of the enemies take turns. To do this I have the enemies check for all loot/characters/danger around them in some really expensive operations. In Alpha-1 this all happens at once which causes a huge lag spike. I tried to fix this in alpha-2 (uploaded after you last played). I have more work to do still on this, it's only around 50% done and needs about another week of dev time