Build turrets. Hold the Keep. Twelve waves 'til dusk.

A 3D isometric-style tower defense starter built on the Kenney Tower Defense Kit: place archer, cannon, frost and mage turrets along a winding valley road to stop twelve escalating waves of raiders before they reach your castle. Upgrades, selling, a pannable/zoomable camera and full touch support are all wired up as a small, well-commented base for an AI editor (or a human) to safely remix.