Something I'm wondering. Sometimes I'll take over a city with 6 or so citizens. When I raze it, I'll get - maybe 4 slaves. Most of the time. Sometimes I'll raze a city with 6 or so citizens and get no slaves. I also note that the last time this happened to me, it was the second city I popped in the same turn. Could that be the issue? Or, this particular city may have been taken over by the current occupying country - maybe that's it. Bummer when I'm all set for more free labor and - nothing.