Here is the full list of all 22 StarSmashers achievements.
You upgraded the Space Beagle, again!
Defeated Kaldor Seth's henchmen before leaving the Cetus system.
You upgraded the Space Beagle.
Defeated Kaldor Seth's henchmen before leaving the Aquila system.
Fully upgraded the Mantus Missile.
Finished the tutorial.
You started your journey as Captain of the Space Beagle.
You upgraded the Space Beagle, just look at those cannons.
Fully upgraded the Space Beagle.
Fully upgraded the Diffuser weapon.
Fully upgraded the Tactical Laser weapon.
Fully upgraded the Pulse Cannon weapon.
Fully upgraded the Multi-Ray weapon.
Escaped the Hydra system.
Defeated Kaldor Seth's henchmen before leaving the Ventaci system.
Defeated Kaldor Seth's henchmen before leaving the Ceros system.
Defeated the Leviathan before leaving the Hydra system.
Cornered Kaldor Seth in the Dracos system and took him down.
Fully upgraded the Mithra Missile.
Fully upgraded the Europa Missile.
Fully upgraded the Phoenix Missile.
Fully upgrade the EMP Missile.