A free tower defense game — play it in your browser, no install. Play Castle Defense in your browser: https://rupertgermann.github.io/castle-defense/ — a Three.js tower-defense game with three battlefields, 15 waves, and procedural worlds and audio.
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Controls: Tab / Shift+Tab during play to move through build sites
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Open the live demo Source on GitHub⚔ This or That: Tower defense games
Castle Defense is a browser tower-defense game built with Three.js. Defend the gate through 15 waves, build and upgrade towers, and choose between three battlefields and three difficulty settings.
Play Castle Defense in your browser — no installation required.
Every push to master runs the build and scheduler checks, builds the game from source, and publishes it to GitHub Pages. A failed check or build prevents deployment, so the previous version stays online.
The deployment workflow publishes only the generated game as index.html.
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