Illusion Pathology
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About Illusion Pathology
Illusion Pathology is a suspense visual novel with micro-horror elements. You wake as a doctor in a mental hospital, where three suspicious male patients appear beside you. As you interact with them, your past and memories begin to surface, and you try to uncover the truth.
Patients and story
The three men include a company president’s eldest son who still loves you after you left him, a younger student who has admired you for a long time and deliberately approached you, and a famous actor who grew up with you as your childhood friend. One of them is a hidden character who wants to imprison you, but he is not the only one with a captive ending. The story also raises the possibility that another personality is involved.
You collect each patient’s token and send them home while avoiding death flags. You can unlock 26 memory fragments, presented as short stories, to gradually recover forgotten memories and reveal how the characters are connected.
Choices and outcomes
Dialogue and interactions affect character relationships and the direction of the story, leading to different endings. A favorability system changes dialogue and can reveal hidden plotlines. The story has multiple branches, with 25 outcomes: each of the two main male leads has one happy ending and three bad endings, while the hidden lead has one happy ending and one open ending.
Action points and content
You can allocate action points across different locations during the day and night. Your choices can lead to different scenes or encounters, and spending multiple points in one location can trigger additional events. The game includes 12 opportunities to allocate action points, over 40 transition images and CGs, and a script of 150,000 words. A playthrough takes about 4–10 hours.
Frequently asked questions
The best price for Illusion Pathology is $5.99 at Steam. It is the only shop with an offer that activates in your country.
The minimum requirements for Illusion Pathology are: Windows 7, 2 GB RAM, 1 GB storage. It also runs on macOS. The recommended specs are in the System requirements section.
No. Illusion Pathology is a single-player game.
Yes. Valve rates Illusion Pathology as Verified on the Steam Deck: it runs well out of the box.
Yes. Illusion Pathology 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.











