Happy Nuclear

Happy Nuclear is a puzzle investigation game in which you play a detective trying to stop a terrorist organization from destroying the world with nuclear bombs. You reconstruct events at a crime scene from incomplete information, using logic to identify the culprits and map their movements between rooms.

Reconstruct the crime

The puzzle system is similar to Sudoku, but instead of filling in numbers, you create movement patterns for suspects. Two information sources provide partial clues:

• CCTV Smart Detection System: shows who used rooms at specified times.
• Room Usage Log: shows how many times a specified suspect entered a room.

Movement rules

Two rules apply throughout the game: everyone must move only to adjacent rooms, and no one can stay in the same room for more than 1 hour.