For parents
A castle game you don't have to worry about
Castle Bonk is a free castle defense game for kids 6 and up. Your child aims the archers, collects coins, and upgrades a cheerful little castle over 30 short days. It was designed from the start around three promises: no chat, no loot boxes, and pay once (if at all).
The facts
- Ages
- 6+ (and grown-ups who like castles)
- Time to beat
- about 2 hours, in short days of 2 to 5 minutes
- Campaign
- 30 days across 5 regions
- Enemies
- 30 enemy types, including 5 bosses
- Difficulty
- 4 levels (Easy, Normal, Difficult, Nightmare) plus parent tuners
- Safety
- No chat, no loot boxes, no sign-up to play
- Price
- Free, with no ads. An optional one-time $4.99 Royal Charter supports the game
- Works on
- Chromebook, iPad, Windows, Mac, and Linux in a web browser
No chat, no strangers
There is no chat, no messaging, no friend list, and no place to type free text. The leaderboard uses names built from two friendly word lists (like “Brave Otter” or “Toasty Muffin”) and a crest, so there are no usernames to moderate and nothing personal on show. Links that leave the game, such as credits or this page, sit behind the grown-ups-only gate.
No loot boxes, no pay-to-win
Everything that affects gameplay is earned by playing. Nothing is random-for-money and there is no premium currency. The only thing for sale is the optional Royal Charter: a one-time $4.99 way to support the game that adds the cosmetic Founder's Pack and cloud save backup. Paid cosmetics don't show on the leaderboard, so no child is singled out for paying or not paying.
Privacy on the game pages
We treat every page your child can reach as a children's site. The game and its guide pages load no analytics SDKs, no advertising pixels, and no third-party scripts at all; our build fails if one ever sneaks in. Progress is saved on your device. We only keep anonymous totals that help us balance the game, with no user IDs. The details are in our privacy policy.
This page and the Royal Charter page are written for adults. If we ever measure our own advertising here, it will only happen after you click Accept on a clear banner, and never with anything from inside the game.
You set the challenge
There are 4 difficulty levels: Easy, Normal, Difficult, Nightmare. You can change the level at Camp between days. Behind the grown-ups-only gate there are finer tuners: enemy health, enemy speed, how many enemies come, castle health, how long coins stay on the ground, aim assist, auto-collect, game speed, and even an unbreakable castle for the youngest players. If a day is failed, your child simply tries again with every upgrade kept.
Screen time that stops nicely
The campaign takes about 2 hours in total, split into days of 2 to 5 minutes. Between every day there's a calm Camp screen, which makes a natural stopping point. There is no daily login reward and no streak to keep, so there's no pressure to come back tomorrow.
Works on the devices you have
It runs in the browser on Chromebooks, iPads, Windows, Mac, and Linux, with mouse or touch. Nothing to install, and no account needed to play. Teachers can use it as a five-minute brain break, and curious kids can read about every baddie in the enemy almanac.
Questions from parents
Is Castle Bonk safe for my child?
Yes. There is no chat and no free-text typing anywhere. Leaderboard names are built from friendly word lists, so nobody can type a rude name. There are no loot boxes and nothing random is ever sold.
What data do you collect about my child?
Nothing personal. Progress is saved on your device. We count anonymous totals (for example, how many players finished day 5) with no user IDs, no cookies, and no third-party trackers on any page your child plays.
Are there ads?
No. Castle Bonk has no ads on any device, and no advertising code runs on any page your child can reach. If your family wants to support the game, the optional $4.99 Royal Charter adds a cosmetic Founder's Pack and cloud save backup.
Can my child buy something by accident?
No. The only purchase sits behind a grown-ups-only gate (a spelled-out multiplication question and a keypad), and checkout needs a payment card.