Cool art style. Solid core game loop with lots of potential. At the moment it's a little repetitive, since not all game features have been implemented, but I can see how it could be cool. For example, maybe different zones are defended by different enemies with different strengths/weaknesses. This could help motivate players to choose which heroes/equipment to send on raids. The map/navigation is a bit tedious, since it requires lots of zooming/clicking/panning to do actions. Maybe it you could let the player click on various random events (e.g. goblin raid, wishing wells, etc.) on the world overview to give them something to do while heroes raid. Good luck with the project.