Ringhollow: Rotating Tower Defence

Tower defence where the towers move: turn three stone rings of towers toward the lanes the beetles will use and hold the hollow for twenty waves. Four towers with three levels, six crawlers, an early-wave bonus. Free, no ads, no tracking.

Ringhollow is a tower defence where the towers move. Beetles crawl down eight lanes towards the glowing hollow in the middle, and your towers stand on three stone rings that you can turn at any time.

Before each wave, red arrows on the rim show which lanes it will use. Turn the rings so your best towers face them, and keep turning as the fight shifts.

• Three turning rings with four, three and two stone pads
• Four towers unlocked one at a time: Bolt, Frost, Mortar and Beam, each with three levels
• Six kinds of crawler: mites, fast scurriers, armoured shellbacks, splitters, spiralling moths and a queen grub every fifth wave
• Twenty waves with a preview of the next wave's lanes and a bonus for sending it early
• Drag to turn on touch, or play with the keyboard alone
• English and Bulgarian, best score saved

Code and text written with AI assistance; checked by PN Scripts with automated tests. Every shape is drawn and every sound synthesised by code; there are no AI-generated image or audio files.

Controls

• Tap or click a stone pad, then a tower button (or 1-4)
• Drag a ring, or hold Left / Right, to turn it
• Up / Down: pick a ring, Q / E: pick a pad
• U: upgrade, X: sell, Space: send the next wave early
• P / Esc: pause, M: sound

Made by PN Scripts.