This product is a brand new and unused 异常 | Exception CD Key for Steam.

Immediately after payment, you will be sent a unique and unused CD Key which can be activated on Steam. You can collect this activation code from our Autokey page.

Simply enter your code into the Steam client (available free from steampowered.com). This will then grant you to a full digital download of the game.

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This enables us to offer instant online delivery, at extremely competitive pricing.

After you receive your key, you can activate the game on the Steam client (available free from steampowered.com). After you activate the game with the Steam software, you can download the game immediately and instantly.

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This product key we are selling is sourced directly from the publisher, or an official distributor of the game publisher. The key is completely region free and includes all languages. Region free means that you can activate the product code from anywhere in the world.

About 异常 | Exception:

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.



“Exception” implemented a simple and unique graphical programming language for the game AI specifically.


This programming language is very simple to use, and anyone can easily get started with a little patience.



When you have finished the program for your units, they will fight automatically according to your instructions.


We can no longer intervene in the units once the battle begins, you need to restart the level if you want to modify the program.
Of course, constantly debugging the program is inevitable, and victory is born from failures!