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About Who is the Criminal
Who is the Criminal is a text-based adventure set in school life, with comedy and deduction. You play Bai Qing-Tian, a mathematics teacher at Zhen Xiang High known as a “Logic Genius.” He is made to look after his colleague’s younger sister, Jiang Mei-Hua, while the two investigate campus mischief and uncover what happened in each incident.
The investigation
You move around the campus, talk to people for clues and compare students’ testimonies to narrow down the suspects. During debates, you use evidence to challenge the people responsible. Your investigation, the hints you collect and your final verdict affect how the story develops, which has three different endings.
Story and characters
Jiang Mei-Hua is a junior high student preparing for her entrance examination. She claims to be a police detective in Criminal Investigation Brigade No.4 and comes to Zhen Xiang High to look for her older sister, who teaches there. Quick to learn but proud in a way associated with eighth-graders, she often tells embarrassing stories about her sister.
As Bai and Jiang search for her sister, they reluctantly deal with incidents including theft, malicious graffiti and pornography loans. Finding the sister marks the beginning of a murder case.
Hidden events
Easter eggs can lead to unexpected events. These include flirting, dueling with the wrong characters or intentionally losing your life.
Frequently asked questions
The best price for Who is the Criminal is $7.99 at Steam. It is the only shop with an offer that activates in your country.
The minimum requirements for Who is the Criminal are: Windows XP, GeForce GTX 650, Intel Core i3, 2 GB RAM, 512 MB storage. It runs on Windows only. The recommended specs are in the System requirements section.
No. Who is the Criminal is a single-player game.
Yes. Valve rates Who is the Criminal as Verified on the Steam Deck: it runs well out of the box.
Yes. Who is the Criminal is the full base game. You need nothing else to play it.
Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.
Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.











