Exception is a game about AI programming. During the game, the player assists the units to defeat their enemies in the virtual world. However, the player needs to control the units by programming instead of controlling them directly.

This is a challenging single-player game. In each level, the player needs to think about the strategy and program the units accordingly. The player needs to program different types of units to beat the level.

In a virtual world where everything operates steadily under an omnipotent system, you will play the role of an operator named 159, who oversees and maintains the system.

Nevertheless, there is no perfect system. You find an exception in the program one day. What is stranger is that the program made a request…

You will discover the secret underneath this cyber world.

[WHEN] Success Rate = 100% [DO] Next level :D
[WHEN] Success Rate ≠ 100% [DO] Optimize it :3


[Code monkeys change the world]

What’s New

Version 1.2.11

Updated level 9.

Ratings and Reviews

4.8 out of 5
2.6K Ratings

2.6K Ratings

Demonslicer123 ,

This is great!

The second I saw this app, I wanted to download it, so i got it and waited till it came out. I had some trouble and level ten but i beat it. This is a really fun game that can test you IQ. Too bad I couldn’t buy the rest of the game. Maybe let us get at least a couple more free stages so we don’t only get a single hard stage for those who can’t buy the rest of the game. This game is awesome and keep up the good work. Also another thing, i finished levels 1-10, the free ones, in a day, so another reason for us to get more free levels. Thanks for reading!!

Edit(with some grammar fixes): oh boy, now u can watch ads to play more levels!! Now i’m really loving the game! And to those who think that the game is too easy, well... you’re wrong about that i’ll tell you. The level starting on level 12 are really challenging and boots up your mind. Love the game as said, and keep up the work!

PS: when you watch and ad i think the level should stay unlocked after you watch the ad, but if the game isn’t making too much or not enough money then i understand :)

Developer Response ,

Thank you for your review! Yeah, I understand how you're feeling. We don't want to add ads in the game for now, but maybe we will change our minds in the future. :)

Art Wiafe ,

A great game for most out there who are clueless but interested in programming, especially kids!

This game is a fun take on intro programming theory. It in no way teaches you how to program AI, BUT that wasn’t the point, nor do the developers make that assertion. What this game does do is get’s you in a brain-space to help you think about how programming is done. If-Then loops, prioritisation, and theory crafting.

A great game for most out there who are clueless but interested in programming, especially kids!

SurpriseFluffyKitty ,

Good concept, flawed execution

On level 12, you’re supposed to use distance detectors to move your bot to point C. It should be as simple as two “When [distance] do [move to the other point]”...but the robot keeps moving toward the same point you’re checking your distance (which shouldn’t happen since you’re moving away from the point when you’ve detected the particular distance). Soooo...I needed to send out a signal so that this dumb robot would actually move away and keep moving.

But it’s not just this needless complication that’s the problem (a few other times it wasn’t clear exactly what the limits of your commands are); the game feels kind of barebones and doesn’t have anything else beside the existing levels. It’s neat, but needs more.


Chengdu Lanfei Huyu Technology Co., Ltd.
83.8 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Simplified Chinese, Traditional Chinese

Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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