Prismhold

Hold the light. The clock never stops. Build crystal towers to defend the Prism Core against waves of Shades. Place your lineup, upgrade at the right moment and unleash your Keeper's ability. Call the next wave early for extra battle gold and a higher score multiplier—then hold on through the boss. A quick challenge or one more wave Clear 15 waves in Sprint and earn up to three stars, or push your personal best in Endless. Sprint stars and Endless records are tracked separately. After clearing boss waves 10, 20 and 30, choose a temporary perk: stronger towers, cheaper upgrades or a tougher Core. Build a defense that feels yours Select up to eight tower types before a run or from the pause menu. Compare the next upgrade before spending battle gold; towers already placed remain when you change your lineup. Start with Nova on Switchback, unlock eight standard towers through progression, and follow daily and weekly goals, achievements, Keeper milestones and mastery badges. Create a local username, change it for free and collect profile icons. Progress through 100 player levels. Give your Coins a purpose Earn Shop Coins through play, or choose an optional 2,000-Coin top-up. Spend Coins on permanent Tower Research: Power improves damage, Reach extends range and Engineering lowers tower costs. Each branch has three ranks, with new research taking effect in fresh runs. Coins also buy saved lineup slots and single-run tools: • Scout previews three waves; Breathing Room adds preparation time. • Wave Reroll changes the next wave while keeping its budget and boss schedule. • Emergency Repair restores up to five lost Core HP once. • Night Waves hides Shades outside tower range for extra score. • Iron Waves adds armour and awards extra battle gold from kills and wave clears. Arm up to two tools or boosts. Customize enemy materials, map palettes and player titles with permanent Coin purchases. Earn Lightkeeper by reaching Endless wave 50 from a wave-one start. Golden Chest doubles daily chest Coins for seven calendar days. Missed dates still count, and it does not renew automatically. Expand with the Arsenal Bundle The optional one-time Arsenal purchase includes nine additional maps, eight Keepers and eight tower types. It also includes all purchasable Shop cosmetics, exclusive profile icons, reusable boosts and run tools, all saved lineup slots, maximum Tower Research and permanent upgrades, Mirror Maps and advanced Endless wave starts. Golden Chest stays active for Arsenal owners. Existing Arsenal owners receive these additions. Lightkeeper must still be earned. Coin-priced profile icons, Coin top-ups and Remove Ads are separate. Ads and progress Prismhold includes ads. The separate Remove Ads purchase removes banners and automatic full-screen ads. Optional reward videos remain available for a Second Chance or double run Coins and XP, subject to ad availability. Purchase prices are shown by the App Store. Shop Coins persist between runs; battle gold buys towers and upgrades during a match. No account is needed. Your profile, gameplay progress and records are saved on your device.