Here is the full list of all 14 Tales of Cosmos achievements.
Explore your boundaries.
Land on the same planet four times in succession.
Discover all celestial objects.
When all else fails, keep on trying.
Launch a spacecraft.
Show 30 items to Perseus.
Help out and make friends.
Follow your hunter instincts.
Manipulate time.
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Overcome your opponent and gain freedom.
Jump 100 times.
Complete the game without ever missing a hit, throw, catch or shot.
Assume command over Shuttle's Bane.