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异常 | Exception

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.

Released Jul 4, 2019 Developer Kunpo Games Platforms Windows StrategyIndieProgrammingRobotsPixel Graphics
View on Steam ↗ $3.99 (US · as of 2026-07-26)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Data as of 2026-05-20.

97.2%positive1,662 reviews
Recommended · 0 found this helpful

“For the price -this game is totally worth it. The biggest annoyance with this game is that it doesn't give you all of the tools at the beginning and let you solve problems in an increasingly more complex way - instead it adds more tools as the level complexity increases which is…”

— a player, Steam review · 3 hrs played
Recommended · 0 found this helpful

“A cool game to figure out bit by bit. And when you think it is over, there is a bit more to experience.”

— a player, Steam review · 13 hrs played
Read more reviews ↗

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-07-25.

20achievements
8.6%median completion
3.0%rarest: Dancer
84.1% of players 73.0% of players 56.7% of players 50.0% of players 49.8% of players 42.2% of players 27.7% of players 17.7% of players 14.7% of players 12.7% of players 8.6% of players 6.9% of players 6.0% of players 5.9% of players 5.9% of players 5.4% of players 4.9% of players 3.6% of players 3.5% of players 3.0% of players 84.1% 0% most earned rarest
Almost everyone has
84.1%Small Logic — Complete level 5.
73.0%Global Variable — Complete level 8.
56.7%Privacy — Discover the engineer's diary.
Rarest badges of honor
3.0%Dancer — Complete level 17 within 30 seconds.
3.5%Minimization — Complete level 30 with 5 or less instruction lines.
3.6%Curiosity — Read all the engineer's diaries.

Price tracking

US-region pricing (USD), sampled twice daily by our own tracker since 2026-07-11. Steam prices vary by region — always confirm your local price on Steam.

$3.99current · sampled 2026-07-26 08:39 UTC
$3.99lowest since tracking began2026-07-11
US3.99 USD
EU3.29 EUR
UK2.89 GBP
Australia5.95 AUD
Canada4.65 CAD
Japan410 JPY
Brazil8.69 BRL
China18.00 CNY

Regional prices at last sample, in local currency — Steam sets each region's price independently.

Brazil≈$1.7 Japan China Canada EU UK US Australia≈$4.2

Cheapest → most expensive, converted to USD at ECB reference rates (2026-07-24). Relative comparison only.

$0 $2.5 $5 07-11 07-14 07-17 07-20 07-23 07-26

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Feb 16, 2020
Charity Sale

All income donated to Wuhan in February Thanks for your support

Aug 21, 2019
SPECIAL PROMOTION

A new 33% off discount is available for two weeks since August 22, Best time to get the game now.

Aug 21, 2019
Untitled
Aug 21, 2019
Untitled
Jul 29, 2019
Untitled

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Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-05-20.

GenresIndie, Strategy
Player tagsStrategy · Indie · Programming · Robots · Pixel Graphics (SteamSpy community voting)
FeaturesSingle-player · Steam Achievements · Steam Cloud · Stats · Family Sharing
LanguagesEnglish, Simplified Chinese, Traditional Chinese
Achievements20
Estimated owners50,000 – 100,000 (SteamSpy)
Minimum system requirements (PC)

Minimum: OS *: Windows 7 Processor: Intel(R) Atom(TM) Z3735F @ 1.33GHz Memory: 512 MB RAM Graphics: Intel(R) HD Graphics Storage: 500 MB available space