Inferno tactics.

Dirty player
Was that game with 66 demons online or offline?

Of course, it was online. I just played against the computer. It turned out to be something like an offline game on a random map. I had to reload a couple of times. The save and the map from which it started are in the archive. If anyone is interested, there are also daily saves :D
Result: on days 1-2-5, I had 63 demons. I killed them all. I could have also killed the Pit Lords, but I didn't. They gave me a second Inferno castle as well. I didn't develop the castles and exchanged all the resources for gold to buy everything at once. I wouldn't do that online, of course; I would build prefectures and Efreet, and I would kill the demons in weeks 3 or 4. The map isn't very rich.