Of all the cities, Markarth has a lot of potential for chaos. There's countless Falmer beneath in the Dwemer ruins, all eager to rise to the surface and kill everyone. There's also the Forsworn who desire nothing more than to crush the Nords and take over. Wouldn't it be awesome to go into the city one day to see it swarming with Falmer, murdering everyone and have to beat them all back down the hole they emerged from?

I think it'd be pretty awesome. Which is why, as soon as that tool kit is released, I aim to work on it. I'm a novice modder, so it's quite likely it'll never get done. If it does get done, it probably won't be anywhere near as good as it could be. So feel free to take the idea and make it happen. I'm still going to give it a try though.

NPC lives are important to me, because I dislike ghost towns, so they'd probably all be temporarily set to essential during the raids. Lots of Falmer and Chaurus (or hostile Dwemer machinery, or Forsworn, depending on the raid) will spawn in the city, and continue to spawn for a good while. Extra guards will also spawn to help defend. Perhaps with Forsworn raids, if they aren't stopped, Forsworn will occupy the city (Forsworn guards and Jarl, new bounty system) and a quest would occur to either clear out the Forsworn or help them stop invading Nords from reclaiming the city.

Making just that will be hard enough for now. Maybe more features in the future. What do you all think? Good idea?

I like it, mainly because the game sets the tone the first time you visit Markath.

It would definitely add some life to the city

Yeah. To be honest, I was disappointed the Forsworn aren't a faction you can join. Those Silver-bloods deserve only to be put to the sword.