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Defend the Crystal Fortress and its people from invading forces in this blend of Turn-Based Tactical RPGs and Tower Defense. Summon the infantry, call out the archers, deploy turrets. Use all the available tools to keep the enemies at bay!
Price history tracked since Jul 7, 2026 · vs all tracked offers.
Based solely on tracked price history — not purchase advice.
How it worksTracked since Jul 7, 2026.
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"This fortress is our home. We will not let the enemy shatter it."
— Captain Phoebe of the Crystal Guard
You take control of Phoebe - fierce warrior, skilled archer, resourceful engineer and fearless commander of the Crystal Guard. Summon powerful soldiers and snipers, mount defensive turrets on the battlefield and get to the frontlines — whatever it takes to leave the fortress intact.
Units recover a limited number of action points (APs) per turn, requiring careful planning. Should you act aggressively with your current points to approach and attack the enemy, or stay put and defend to recover additional points while letting them get closer to the fortress? But beware: enemy units can act the same way!
In this game, you only control the main character. After you make your move with Phoebe, all ally units take their action simultaneously, followed by all enemy units at once, resulting in a very fluid and quick passage of turns!
Spend your gold between battles to power-up each of your units, increasing their Max HP, Max AP and AP Recovery, Damage, among others. Be prepared, for the enemy waves will grow relentlessly.
Experience stage progression divided into chapters, providing different environments to play as the Crystal Guard shifts their defensive efforts to each of the four gates.
