The Search for Planet X icon

The Search for Planet X

Foxtrot Games
★ 4.6 (293 ratings)
⬇ 100,000+ downloads
Est. actual: 159,029
Style: Board
Free
Released: Jun 27, 2019
No in-app purchases
No ads
Rated: Everyone

Signals

1 this week · 1 warning All of this week's signals →
  • 🛠Updates dormant · updated 558 days ago
Installs since launch
0 80K 159K 159K Jun 27, 2019 today
Tracking since Sep 25 — growth appears once we have a second daily reading.
Update history
2.5.51 Mar 17, 2025 · seen Sep 25, 2026
Added Ukranian translations
Only the current version so far — new entries appear as the game ships updates.
The Search for Planet X screenshotThe Search for Planet X screenshotThe Search for Planet X screenshot
Since 2016, astronomers have been searching for a large, distant planet to explain the unique orbits of objects in our solar system. In THE SEARCH FOR PLANET X, a tabletop board game from Foxtrot Games, you will take on the role of these astronomers, using observations and logical deductions to search for this distant planet. The game uses a companion app to randomly choose a location for Planet X and other objects, following predefined logic rules. As the earth travels around the sun, you will interact with the app to perform various research actions. You'll note what you learn on your deduction sheet, and you'll be able to piece together all the available information to publish theories and score points. THE SEARCH FOR PLANET X captures the thrill of discovery, the puzzly-nature of astronomical investigation, and the competition inherent in the scientific process.