I’m having the same problem. Yesterday, I installed the latest stable (0B Brin) version, but I can’t seem to get any zombies to show up in my games. There are NPCs (at least one in each of the games I’ve tried) and animals (weasels and such, at least), but no zombies.
I’ve certainly done that. In fact, I closed the game and deleted the entire world I’d created the first time, then started all over. Still no zombies. I’m starting in town, so it’s pretty obvious. Besides, this can’t have anything to do with loading saves, because I haven’t loaded any save games.
Note that I do have monsters turned off, but I thought that meant just the weird Lovecraftian stuff.
Those are very similar to my options, but I didn’t choose “classic zombies,” just “no monsters.” For me, however, I haven’t had zombies at all, right from the start. Two different worlds, three different starts, still no zombies. (Well, I haven’t gone too far in this game, but since my character started in town, there should have been some zombies around by now.)
I suppose I’ll delete everything and reinstall the game again. This is the first version of Cataclysm I’ve ever had a problem with (admittedly, I don’t play it all the time).
Any suggestions if that doesn’t work?