Frankfurt am Main
That's a shame, because Pax Porfiriana has a solid solo game adapted by Ricky Royal.
I see, but I just found Neanderthal to have too many small rules and exceptions, I always had to check the (horrible) rulebook no matter how many times I played it, even though I really liked the general idea of the game. After checking the forums for some of his other games, I got the idea that they are kinda similar in that regard.
I just prefer games that are streamlined and with simple rules, regardless of their depth.