PSYCHOLOGICAL HORROR / ROMANCE · 18+

OVERD0SE

Wake in an unfamiliar hospital, where a doctor knows more about you than he should. Make your choices carefully in this mature psychological horror visual novel.

OVERD0SE scene featuring the doctor and a syringe
The premise

ABOUT OVERD0SE

OVERD0SE is a mature psychological horror visual novel by HoruBrain. It opens with you waking in a hospital you have no memory of arriving at, and a doctor who behaves as though your case has been running for some time.

That is the whole hook: the doctor knows more about you than he plausibly could. The game is about working out whether that means he is treating you, studying you or something else entirely, and it keeps the romance and the horror running in the same conversations.

What to expect

WHAT TO EXPECT

It is played as a dialogue-led visual novel — you read scenes and make choices, and the tension comes from how the doctor reacts to each one. There is no combat and no navigation puzzle, so the writing carries the entire experience.

The tone is claustrophobic and deliberately unsettling. Because the story pairs medical imagery with an intimate dynamic, it sits firmly in adults-only territory and is not intended for younger players.

Quick start

HOW TO PLAY

OVERD0SE runs in the browser frame on this page. Nothing is installed and no account is needed.

  1. Open the player and start from the hospital scene.
  2. Pay attention to what the doctor already knows about you.
  3. Choose your replies carefully — trust in this game is a resource you spend.
  4. Keep going to the ending your decisions earned.
Play in browser

PLAY OVERD0SE

The game loads inside this dedicated frame. Use the fullscreen control if your browser allows it.

OVERD0SE / WEB BUILDUNOFFICIAL BROWSER PORTAL

Content note: OVERD0SE contains psychological manipulation, medical and drug imagery, disturbing themes and explicit adult content. It is intended for adults aged 18 and over.

Before you start

OVERD0SE FAQ

  1. What is OVERD0SE about?You wake in an unfamiliar hospital with a doctor who knows details about your life that he should not have access to. The story is about finding out how that is possible, and the horror and the romance develop through the same set of conversations.
  2. Is OVERD0SE free to play?Yes. The browser build runs inside the player on this page. There is no download, no installation and no account required to start.
  3. Does my browser support OVERD0SE?A current desktop version of Chrome, Edge, Firefox or Safari is recommended, with JavaScript enabled. The first visit downloads the engine and data pack, so give it a moment and click inside the player once it appears.
  4. Why is the slug killer-chat when the game is called OVERD0SE?The URL is an older internal name kept for backwards compatibility and to avoid breaking existing links. The game itself is titled OVERD0SE, which is what you will see in the build and on the creator's page.
  5. Is this an official OVERD0SE website?No. It is an unofficial browser portal maintained separately from the developer. OVERD0SE and its characters belong to HoruBrain.