Here is the full list of all 19 Voltron: Cubes of Olkarion achievements.
Listen to Coran's wise instructions in the first 6 tutorial scenarios.
Win the mission 'Highrise' without losing a single crumbly support Cube.
Win the mission 'Balmera's Core' while preventing destruction of more than 15 crumbly Cubes.
Win the mission 'Space Warfare' and destroy at least 3 enemy Cubes by over-freezing them.
Without ever having more than 5 Cubes on your field win a match against AI in hard mode.
Destroy an enemy Cube with repeated Frost Beams until its cooldown is more than 100.
Win an online match for the first time.
Play and finish 50 local multiplayer matches.
Beat 18 different single player missions.
Win 5 online matches.
Win 15 online matches.
Win 30 online matches.
Win 50 online matches.
Win 100 online matches.
Clean up the universe by destroying 100 enemy Cubes.
Clean up the universe by destroying 300 enemy Cubes.
Clean up the universe by destroying 1000 enemy Cubes.
Clean up the universe by destroying 3000 enemy Cubes.
Clean up the universe by destroying 10000 enemy Cubes.