How to play Castle Voice Defense
Castle Voice Defense is a free AR + voice game you can play online with no download. Point at monsters and shout FIRE — build towers with a fist, FREEZE the horde with your voice! Castle Voice Defense is made by ZappyDude, tested on phones and desktops, and loads in seconds without plugins or sign-up.
Castle Voice Defense runs instantly in your browser on phone or PC.
Controls
- Use the on-screen controls on mobile, or keyboard and mouse on desktop.
- Follow the in-game tutorial on the first level – it shows every move you need.
- Pause anytime from the menu; progress is saved in your browser.
Tips
- Upgrade early and often – progression matters more than speed.
- Try again: each run teaches you enemy patterns.
- Rotate your phone to landscape for a wider view, and like the game to find it again later.
FAQ
Is Castle Voice Defense free to play?
Yes. Castle Voice Defense is completely free to play on ZappyDude (Premium members also play it ad-free). There is nothing to download or install.
How do I control Castle Voice Defense?
You play with your face or hand plus voice commands. Use the on-screen controls on mobile, or keyboard and mouse on desktop.
Can I play Castle Voice Defense on a computer?
Yes. It works in any modern browser on Windows, Mac, Chromebook, Android and iPhone.
Which devices does Castle Voice Defense work on?
It works in Chrome, Edge, Firefox and Safari on Android phones, iPhones, tablets and computers.
Castle Voice Defense game guide
Goal of the game
In Castle Voice Defense you play with your hand in front of the camera. Monsters march down the road toward your castle. POINT your finger to aim the golden crosshair and say FIRE (or clap) to launch a cannonball there. Make a FIST over a glowing tower pad to build an auto-tower (costs 30 💰 — earn gold by defeating monsters).
Say FREEZE to stop every monster for 3 s (12 s recharge). Don't let them reach the gate!
Quick start
Castle Voice Defense in one line: Point at monsters and shout FIRE — build towers with a fist, FREEZE the horde with your voice!
- Press Play on this page — Castle Voice Defense loads in a few seconds right in the browser.
- Tap Allow when the browser asks for the camera, then read the short tutorial card.
- Play your first run of Castle Voice Defense slowly to learn how it reacts to your hand in front of the camera.
- After a game over, press Play again to try to beat your best.
Controls explained
- Quick reminder shown in Castle Voice Defense: Point = aim · say FIRE · FREEZE · fist on pad = build tower.
- Hold one hand about an arm's length from the camera so Castle Voice Defense can see your whole palm and fingers.
- Move slowly at first: Castle Voice Defense follows your fingertip in real time, and smooth movements are tracked more accurately than jerky ones.
- If Castle Voice Defense feels too hard at first, play a practice round to learn the timing before chasing a high score.
Scoring and levels
Every 450 points you reach a new level, and Castle Voice Defense speeds up and sends more at you each time. You start with 3 lives. Your best score is saved in your browser, and signed-in players also appear on the Castle Voice Defense leaderboard.
Power-ups
Power-up orbs appear every few seconds in Castle Voice Defense. Touch or collect them to activate:
- ✨ Triple (8 s): multiplies your attack or catch three ways.
- ⏳ Slow-Mo (6 s): slows the whole game down so you can line up precise moves.
- 2️⃣ Double Points (10 s): doubles every point you earn while it lasts.
- ❤️ Extra Life: adds one life (up to six).
- ❄️ Freeze (5 s): freezes every moving threat in place.
Characters and world
The 3D world of Castle Voice Defense features zombies, skeletons, vampires, orcs, tower completes and cannons. Learning how each one moves is the key to reading the screen quickly.
Tips and strategy
- Aim at the nearest threat first in Castle Voice Defense; letting one slip through costs more than a missed shot.
- Save your focus for the moment a Freeze or Slow-Mo starts — that is when Castle Voice Defense gives you free points.
- Good, even lighting from the front makes tracking in Castle Voice Defense far more reliable than a bright window behind you.
- Replay Castle Voice Defense a few times: each run teaches you the patterns, and scores usually double after the first five games.
Device requirements and privacy
Castle Voice Defense needs a device with a front or web camera (any recent Android phone, iPhone, laptop or Chromebook) and works best in Chrome, Edge or Safari. Allow camera access when asked; hand tracking runs entirely on your device with Google MediaPipe, and no video ever leaves it. It is free to play; free players may see a short ad between rounds (never during play), and Premium removes all ads.
