https://store.steampowered.com/app/1285060/Winter_Falling_Battle_Tactics/
They are coming! There are hundreds of them! Prepare your city for defence and do not let them get in! Command your men, build high walls, improve the town buildings, and lead your mighty hero into the middle of the fray!
Collect gold during the siege. Even if your city falls, you can use it to upgrade your next city! Spend it on unlocking new technologies, improvements, and card packs. Defend longer with each playthrough!