Oh wow, I don't think I ever expected to see a horny Battle for Wesnoth campaign. Turn-based strategy is not normally a horny genre.
This is a really good way to do it, though. Corruption and slow really are horny mechanics. The difficulty wasn't too much, but a bit more than I'm used to from kinkgames - I was able to get through it without trouble, but I have played Battle for Wesnoth before, even if I'm rusty at it. Still, I think this is a cool idea.
The fact that there's actually full encyclopedia entries is also a nice touch.