Zombies and creepers are coming down the dirt road. Build weapons beside the road and fight them yourself as the fort's archer.
Creepers blow up anything they get close to, and the mobs get stronger every level.
Move your archer with WASD or the arrow keys, or tap the ground. Your archer shoots on their own; press Q for an arrow volley. Press F to switch to first-person and aim yourself. Pick a weapon below and tap a grass square to build. Space starts the level.
Level cleared
The fort fell
Paused
See the battle through your archer's eyes and aim every arrow yourself.