Here is the full list of all 14 Tales of Cosmos achievements.
Help out and make friends.
Explore your boundaries.
Follow your hunter instincts.
Discover all celestial objects.
When all else fails, keep on trying.
Land on the same planet four times in succession.
Launch a spacecraft.
Show 30 items to Perseus.
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.