12 Hours Museum

12 Hours Museum is a first-person anomaly-search adventure about a man who, after an accident leaves him unconscious, wanders through a museum in his dreams and tries to escape—or return alive. As he loops through the museum, you search for meaning in life, explore his deeper psychology and pursue the truth. The game has seven endings that branch according to your actions.

Search the museum

You explore a dimly lit museum using a pocket watch and flashlight, looking for places that seem wrong. To clear the game, find anomalies 12 times in a row within the time limit. When you discover an anomaly while keeping your eyes on your feet, a moving monster appears and transfers you to the next stage.

The game includes 45 anomaly-search points at first. After you collect all 45 anomalies and the endings, certain operations unlock an extra mode with 54 more anomalies, bringing the total to 99.

Modes and collection

After your first clear, you can unlock the Variation Collection gallery and Infinity Mode. The collection lets you browse and revisit anomalies you have already found, while Infinity Mode brings up undiscovered anomalies. The game also includes an extra mode unlocked through certain operations after you collect all anomalies and endings.

Difficulty and playtime

You can choose from three difficulty levels. The probability of time-limit-extending items appearing changes with the selected difficulty. A first clear takes about 30 minutes; completing the game by finding all 99 anomalies takes a minimum of about four hours and an average of about seven.