Cœur de Cristal

? Frequently asked questions

How do I steer a beam?

Tap a mirror to flip it between its two diagonals. Tap a prism to cycle through its palette. A level is won when every heart receives its exact colour.

What does PAR mean?

PAR is the move count of the optimal solution, computed by exhaustive search. Finishing at or below PAR earns three stars, up to PAR + 2 earns two, beyond that one.

How do colours combine?

Light is additive: red + green makes yellow, red + blue makes magenta, green + blue makes cyan, and all three make white. The spectral prism does the reverse — it breaks white back into red, green and blue.

I'm stuck on a level.

Every level is verified solvable from its starting state. "Undo" takes back your last move, "Restart" resets the level. Acts 1 to 6 show a hint below the board.

Is the game available in English?

Yes. Cœur de Cristal follows your device's language and can be switched at any time from the title screen. Interface and hints are translated into English and French.

How do I resume my game?

Your progress, records, stars and settings are saved automatically on your device.

Can I play offline?

Yes. No account or Internet connection is required, and all 200 levels are available from install.

Does the game work on iPad?

Yes. Cœur de Cristal is designed for iPhone and iPad running iOS or iPadOS 14 and later.

! Report an issue

Tell us your device model, iOS or iPadOS version, level number and a description of the issue. Please attach a screenshot if possible.

Send everything to contact@kundaliweb.com.

⌾ Privacy

Cœur de Cristal does not collect personal data. Read our complete Privacy Policy.