The Search for Planet X
Free
2.5.2for iPhone, iPad and more
Age Rating
The Search for Planet X Screenshots
About The Search for Planet X
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.
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.
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What's New in the Latest Version 2.5.2
Last updated on Jul 24, 2023
Old Versions
Updated Korean translations and logo
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Version History
2.5.2
Jul 24, 2023
Updated Korean translations and logo
2.5.1
Jun 19, 2023
Updated Korean translations
2.5.0
Jun 2, 2023
Added Korean translations
2.4.6
Nov 29, 2022
Updates to Hungarian translations for Research text
2.4.5
Nov 3, 2022
Added Hungarian translations
2.4.4
Oct 20, 2022
Added Japanese translations
2.4.3
Sep 2, 2022
Add Greek translations
Deactive game codes with incorrect Planet X Conferences titles
Deactive game codes with incorrect Planet X Conferences titles
2.4.2
Aug 16, 2022
Update Final Bot Action buttons in solo game
2.4.1
Aug 7, 2022
Updated Polish translations
2.4.0
Jun 28, 2022
Add Chinese translations
2.3.1
Feb 24, 2022
Add Portuguese logo and update Portuguese translations
Remove unsolvable game codes
Remove unsolvable game codes
2.3.0
Jan 27, 2022
Add Polish logo
Updated translations from Spanish, Portuguese, Italian, and German publishers
Updated translations from Spanish, Portuguese, Italian, and German publishers
2.2.0
Oct 21, 2021
Add Russian translations from official partner
Updates to Polish translations
Add Dutch translations
Add German logo
Updates to Polish translations
Add Dutch translations
Add German logo
2.1.0
Jul 13, 2021
Add setting to disable sounds
Modify footer for better scrolling
Add Game Code and History link to Game Over footer
Resume Solo Game functionality when app is closed
Include 10 more solo game codes (Expert Mode)
Limit end game sector selector after solo player finds Planet X before the bot
Add logos and language detection for supported languages (French and English)
Fix error in Spanish translation for Dwarf Planets research
Modify footer for better scrolling
Add Game Code and History link to Game Over footer
Resume Solo Game functionality when app is closed
Include 10 more solo game codes (Expert Mode)
Limit end game sector selector after solo player finds Planet X before the bot
Add logos and language detection for supported languages (French and English)
Fix error in Spanish translation for Dwarf Planets research
2.0.0
Jan 26, 2021
Activate 4000+ new game codes
Change text for single-sector surveys
Minor interface improvements:
- Add two-step selection on Conferences screen
- Change style for non-functional buttons (History, Bot: Finished)
- Add language name to the start screen
Add Spanish (beta) translations
Switch to WKWebView (required by App Store)
Upgrade Ionic and Cordova libraries
Change text for single-sector surveys
Minor interface improvements:
- Add two-step selection on Conferences screen
- Change style for non-functional buttons (History, Bot: Finished)
- Add language name to the start screen
Add Spanish (beta) translations
Switch to WKWebView (required by App Store)
Upgrade Ionic and Cordova libraries
1.9.3
Oct 26, 2020
Deactivate game codes with duplicate research items
Add 4000+ new game codes in the background for compatibility with future releases
Add 4000+ new game codes in the background for compatibility with future releases
1.9.2
Sep 29, 2020
Improve Survey > Select Sector popovers for smaller iPhone screens
1.9.1
Sep 17, 2020
Minor update to retire some game codes with Asteroids-only and Comets-only research items
1.9.0
Aug 26, 2020
Promote Solo Game out of beta
Add History page for starting information and player actions
Add game code, icons, and table styling to the Game End page
Add French, German, and Italian translations
Add reminders about the visible sky, with a setting to turn reminders off
Add History page for starting information and player actions
Add game code, icons, and table styling to the Game End page
Add French, German, and Italian translations
Add reminders about the visible sky, with a setting to turn reminders off
1.8.1
Jul 1, 2020
Activate 900 new game codes; compatible with 1.6.4+
Adjust text for single-object research topics
Adjust instructions about advancing pawn when locating Planet X
Add help text to research and conferences
Minor interface improvements for Select Sector and Select Object buttons
Add color scheme and icons to differentiate between multiplayer and solo mode
Adjust text for single-object research topics
Adjust instructions about advancing pawn when locating Planet X
Add help text to research and conferences
Minor interface improvements for Select Sector and Select Object buttons
Add color scheme and icons to differentiate between multiplayer and solo mode
1.7.0
May 31, 2020
Add spinner to loading screen
Track game code history to avoid selecting repeat codes
Improve interface on tablets and smaller phones
Specify English as display language to fix text display errors
Add beta messaging for translations
Track game code history to avoid selecting repeat codes
Improve interface on tablets and smaller phones
Specify English as display language to fix text display errors
Add beta messaging for translations
1.6.3
May 1, 2020
Changes to labels and capitalization throughout
Adjustments to research and conference text
Additional helper text around comet surveys
Updated icons
Small interface improvements
Add beta messaging for solo mode
Add 1000+ new maps in the background
Adjustments to research and conference text
Additional helper text around comet surveys
Updated icons
Small interface improvements
Add beta messaging for solo mode
Add 1000+ new maps in the background
1.1.2
Oct 15, 2019
Changing dropdowns to popovers
Changing player colors to season views
Changing player colors to season views
1.0.6
Sep 5, 2019
"Planet X is not adjacent" conference clues
Setting game mode when entering game code
Setting game mode when entering game code
1.0.5
Sep 4, 2019
Research costs updated and note added
Comet scan note added
Peer Review object field now required
Comet scan note added
Peer Review object field now required
The Search for Planet X FAQ
Click here to learn how to download The Search for Planet X in restricted country or region.
Check the following list to see the minimum requirements of The Search for Planet X.
iPhone
Requires iOS 11.0 or later.
iPad
Requires iPadOS 11.0 or later.
iPod touch
Requires iOS 11.0 or later.
The Search for Planet X supports English
