Iron Citadel
Enemy forces are inbound. Construct your defenses and hold the citadel through 8 waves of escalating assault.
- Click a cell to place the selected tower
- Archer — fast bolts, cheap and reliable
- Frost — slows enemies for others to finish
- Cannon — heavy splash damage on groups
- Tesla — instant arc beam, no miss
Towers block the path — enemies reroute, but you can't fully wall the lane.