From the campaign:
The Defense of the Citadel is a cooperative hero defense board game for 1 to 4 players. It is set in a high fantasy world where you as the hero need to defend the holy citadel against waves of enemy invasion.
There are 2 ways to play and enjoy 'Defense of the Citadel', referred to as 'Missions' and 'Campaign' in the game.
'Missions' have predefined settings and last no more than an hour to play, which is perfect when you just want a quick short game. 'Missions' are also sequential, connected to each other through a story line.
'Campaign' on the other hand is the opposite with no particular predefined settings. The map tiles are randomized, events are randomized and your performance and decisions through the phases as well as crafted items and wounds will carry onto the next until you reach the final objective. 'Campaign' is meant for a long game, and you may need to record the status of the game to carry on the game on another day.
The Kickstarter campaign is up and running now. It's set to go for another 28 days.