Swap two adjacent arrow runes on the 8×8 board to make matches of 3+ same-colored tiles. Matching tiles grants Gold, Score, and occasional Potions based on match size. Spend Gold to Buy Archers, Sell Archers, Upgrade ATK, or activate Breath Hold. Archers automatically attack demons approaching from the right side. Enemies move lane-by-lane; if they reach the ruin, it loses HP. Survive the enemy wave to trigger Free Swim Mode (10s)—a safe period with no spawns. The game ends when Ruin HP reaches 0. Press Restart to begin a new run. Controls Desktop Click two adjacent tiles to swap them. Click UI buttons to buy archers, sell archers, use potions, upgrade attack, or activate Breath Hold. Mobile Tap two adjacent tiles to swap them. Tap UI buttons to use items or purchase upgrades. Key Features 8×8 Match-3 Board with cascading tiles and auto-rematching. Lane Defense Combat with four battle lanes and auto-shooting archers. Gold & Potion Economy tied directly to match sizes. Upgradeable Attack Power (up to MAX ATK level). Buy/Sell Archers System with lane-based placement. Breath Hold Skill slows game update speed for tactical advantage. Free Swim Mode (10s) between waves—no enemies, full recovery window. Progressive Wave System with scaling enemy count, speed, and health. Particle Effects, animations, and responsive UI. Fully optimized for desktop and mobile gameplay.