Guard the Mast

Things leaking down from the Tower's upper floors swarm the Mast from every side. Spend gold in the shop, which changes every round, and the gear you buy is mounted on the Mast and fires on its own. Survive the set number of rounds and the Gatekeeper rises at the end; defeat it to clear the zone.

1. 1Press Start on the title screen and pick a zone. At first only Entrance and Relay Room are open
2. 2Buy from one of the 8 shop slots (or keys 1–8), and reroll when nothing fits. Rerolls are free until your first purchase
3. 3Collect the same type or element to open stronger sets
4. 4Full Broadcast clears every foe on screen once per run. Save it for the Gatekeeper or spend it in a crisis — that's the choice

• Normal beats Medium, Pierce beats Light, Magic beats Heavy, Siege beats Fortified for 2×. Chaos has no counter and rolls its damage
• The line above the round tells you which armor is coming. A foe's health bar color is its armor
• Only three big sets take effect at once, in the order you opened them
• Catch the wandering cart to pick one prize for this run

• Winning a zone opens the next one; honors give Mast skins and insignia
• Win the Archive Floor to open the Settlement Chronicle and spend points on permanent upgrades. Refunds are always free
• Win the Relay Mast to open the Upper Archive, where record fragments decode relics you can equip

Guard the Mast is a practice game. It doesn't spend or give points and has no ranking. Progress is saved only in this device's browser, so it won't carry over to other devices or private windows.