Hello everyone!
I’m starting a devlog for Fruit Box, a small browser puzzle built around one simple idea: making sums to 10 feel more like play than practice.
The original design brief was to create something calm, quick to understand, and satisfying for players of different ages. I wanted a game that could offer a short mental reset while also giving younger players a fun way to practise number combinations within 10.

The rule is simple: drag a rectangle around numbered apples. If every apple inside the rectangle adds up to exactly 10, they disappear and you score a point for each apple cleared.
A round lasts 120 seconds on a 17 x 10 board. Every board is generated with a verified solution, so a perfect 170-point clear is always possible. The interesting part is deciding which groups to remove first: do you take the obvious pairs, save useful numbers for later, or clear a larger rectangle for a bigger score?
Fruit Box is designed to be a relaxed but replayable little challenge. There is no account required, and it currently supports English, Japanese, and Korean.
I’ll use this thread to share future improvements, puzzle-design experiments, and lessons from balancing a game with such a small rule set. I’d love to hear what combinations you spot first, and whether the 120-second limit feels relaxing or competitive.
Play it on itch.io:
https://weizixiao.itch.io/fruit-box-game
You can also play it on the web: 👉 fruit box game
Here’s a short gameplay video:
Thanks for taking a look!