Hold the line and keep the light alive. You circle a sacred Wardlight beacon while your weapons auto-fire - all you do is Move (WASD or arrow keys, or drag on touch) and decide where to stand. Kills drop gems that level you up: pick upgrade cards, stack passives, evolve your weapon. But the horde swarms the beacon, not just you - if its light dies, the night wins. Orbit, hold the line, and stoke the Wardlight between waves. Pick the Warden or the Ranger and survive the escalating nights.