Gather — drag-select workers, right-click Food / Mud / Honeydew to mine. They keep at it until you move them.

Build & Train — spend Mud on buildings, Food to train units. Counters matter: infantry > skirmisher > siege > buildings, and skirmishers shoot down flyers. Walls only fall to siege.

Explore — the map is bigger than your screen. Move the camera with WASD / arrow keys, by dragging the minimap (bottom-right), by pushing the screen edges, or by middle-mouse dragging the map. Space jumps to the action.

Win — destroy the enemy base before they destroy yours. You'll get a warning when they march.