Happy Nuclear is an evidence-based investigation game where players act as detectives to prevent a disaster. They analyze interconnected case information on an investigation board, primarily using old CCTV and access logs. Cases link together at the end, and each replay introduces changes.
| Release date: | 10 Jun 2025 |
|---|---|
| Last update: | 12 Jun 2025 (on Steam, public branch) |
| Developers: | Hi-Develop |
| Publishers: | Hi-Develop |