Here is the full list of all 27 Star Swapper achievements.
Complete all Constellations with best outcome possible.
Complete all Constellations.
Complete all Zodiac Chapters.
Unlock all 13 chapters.
Complete 75 Constellations.
Complete 50 Constellations.
Complete six Zodiac Chapters.
Complete 25 Constellations.
Complete one Tutorial.
Restart a constellation three times in one session.
Solve a Constellation with minimal number of moves.
Destroy a Star.
Cause a Red Giant to explode.
Solve 10 Constellations without restarting a session.
Complete Capricornus Chapter.
Complete Aquarius Chapter.
Complete Pisces Chapter.
Complete Aries Chapter.
Complete Taurus Chapter.
Complete Gemini Chapter.
Complete Cancer Chapter.
Complete Leo Chapter.
Complete Virgo Chapter.
Complete Libra Chapter.
Complete Scorpius Chapter.
Complete Sagittarius Chapter.
Teleport 30 Stars.