"Nothing is created, nothing is lost, everything is transformed." - Antoine Lavoisier, 'Elements of Chemistry'
'Alcyone' is a chemistry puzzle game set across the periodic table. Your goal is to weave scattered elements together to synthesize molecules, and assemble them to trigger chemical reactions. Molecules don't simply stay in place. As temperatures rise and fall, matter changes states between gas, liquid, and solid—floating up or sinking down. This unique system adds depth to the puzzle in a truly distinctive way. Design your own chain reactions and lose track of time in the world of chemistry. Simply enjoy the game, and real-world chemical knowledge will follow like a gift.
Build molecules and trigger reactions.
• Combine elements to synthesize a wide variety of molecules. Experience the vast world of chemistry and find joy in discovering over 1,300 real-world compounds.
• Compounds change through three phases—solid, liquid, and gas—depending on the ambient temperature. Their physical properties, where solids and liquids sink and gases rise, act as key variables in your puzzles.
• Place identical compounds in adjacent cells to trigger reactions. The more complex the elemental composition of the compound, the higher the score you earn, allowing you to find your own efficient scoring path.
• Your score increases exponentially as the number of reacting compounds grows and the chain reactions last longer. Strategize your placement to achieve the highest possible scores.
• From basic reactions like acid-base neutralization and hydrolysis to advanced organic chemistry, combine real-world chemical reactions to design and enjoy spectacular chain reactions.
Explore the periodic table and collect elements.
• Conquering numerous stages organized by atomic number, from Hydrogen (H, 1) to Krypton (Kr, 36), allows you to explore chemistry from basic to advanced levels step-by-step.
• Every time you complete a stage, you can collect new elements or unlock new chemical reactions that expand the possibilities of your experiments and your scientific toolkit.
• Upgrade each element to significantly boost your scoring efficiency. As you upgrade specific elements, the value of every compound containing them increases, letting you reach much higher scores.
• Acquire and upgrade organic functional groups to improve synthesis efficiency. Even compounds with complex structures can be created much more easily and quickly using upgraded functional groups.
Alcyone is continuously improved through regular updates. Focus entirely on the joy of chemistry without any in-app purchases or pop-up ads.
Very enjoyable game that has actually taught me an unexpected amount about chemistry. I’ve beaten it 3 times so far and it’s a great way to kill some time. Just a few notes- there seems to be a bug in the latest update where creating certain compounds (usually more complex organic molecules) where the screen goes completely white. Also, a search feature would be very nice for navigating the encyclopaedia easier. Other than that, awesome game
Developer Response
Sorry for the delayed response. We identified an issue where large vector images of structural formulas were not displayed properly on certain devices, and this has been fixed in the latest update. Thank you so much for your valuable feedback!
Best new game in a decade
Cyclothymic
This is an amazing game. Simple to start, difficult to do well in. Honestly cannot stop playing it. Highly recommend spending the money to get it. No adverts - just chemistry.
Lovely game. Family sharing doesn’t seem to work.
RichieQu
A smart thinking game, with a price that means doesn’t have ads which enhances the ‘gameplay.’ It’s a calming game, that doesn’t overstimulate. Would be a great family learning game to do and swap learning experiences . But family sharing doesn’t seem to work yet. If the family sharing feature works in the future. This would be a 5 star game.
Developer Response
That is strange. Alcyone does support Family Sharing. Since this is configured through App Store options, it does not require any specific code within the app. Could you please check it again? I will investigate whether there have been similar reports on my end. Thank you.
Really fun game
chickenbutt325
The game has great value considering how replayable it is and the developer updates it regularly with improvements
Developer Response
Based on your feedback, I conducted extensive performance profiling. I'm pleased to report that the 1.3.1 update drastically lowers battery usage. Thank you for your support.
ACHIEVEMENTS & DISCOVERY
• Added 73 new challenge achievements.
• Achievements require Game Center integration and unlock properly when signed in.
• Access the "Discovery" page via the dropdown menu on the Statistics page.
• The "Discovery" page distinguishes between discovered and undiscovered molecules.
• Added a search feature on the "Discovery" page to search by molecule name or chemical formula.
• View discovery status of all molecules containing a specific element on the Element Info page.
STATISTICS
• Molecular statistics have been made significantly more granular.
• Molecule formation now tracks direct synthesis vs. transformation reactions separately.
• Molecule removal tracks score reactions, transformation reactions, and use as synthesis materials separately.
• Check the average score multiplier relative to the unit score (including element score upgrade bonuses).
• View the rank of each molecular record relative to all discovered molecules.
• Added a button in Settings to reset molecular statistics (achievements and discovery data are preserved).
USER INTERFACE
• Optimized landscape layout for iPhone Duo.
• Differentiated cell colors in the preview to predict temperature changes when forming molecules.
• Molecule Info statistics now distinguish between all-time records and the current game.
• The "Combination" section on the Molecule Info page can now be collapsed.
• Added buttons to adjust encyclopedia text size.
• Updated cell colors for acid salts and diprotic acids.
• Inverted GHS pictogram colors in Dark Mode to reduce eye strain.
OTHER IMPROVEMENTS & FIXES
• Corrected countable instances of "element" to "atom".
• Corrected locale-specific floating-point notation (French, German, Spanish).
• Magnesium hydroxide can now trigger neutralization reactions.
• Borane (monoborane) is now always in a gaseous state.
• Corrected physical property data for alkanes, alkenes, and alkynes.
• Excluded unformable isomers from the database so they no longer appear as stage objectives.
Version 1.6.0
The developer, Boil Studio Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Location
Identifiers
Usage Data
Privacy practices may vary based, for example, on the features you use or your age. Learn More
The developer indicated that this app supports the following accessibility features. Learn More
Supported Features
Dark Interface
Information
Provider
Boil Studio Inc.
Size
95.4 MB
Category
Puzzle
Compatibility
Requires iOS 15.6 or later.
iPhone Requires iOS 15.6 or later.
iPad Requires iPadOS 15.6 or later.
iPod touch Requires iOS 15.6 or later.
Languages
English and 7 more
English, French, German, Japanese, Korean, Simplified Chinese, Spanish, Traditional Chinese