Here is the full list of all 63 Godzilla Voxel Wars achievements.
Obtain a monster for the first time.
Clear the first stage.
Clear 50 stages.
Clear 100 stages.
Clear 200 stages.
Clear one area after earning 3 stars in all its stages.
Clear all stages.
Enter the first underside stage.
Clear half of all underside stages.
Clear all underside stages.
Earn 3 stars in 50 stages.
Earn 3 stars in 100 stages.
Earn 3 stars in 200 stages.
Earn 3 stars in all stages.
Obtain all monsters.
Defeat the first boss.
Defeat the second boss.
Defeat the third boss.
Defeat the fourth boss.
Defeat the fifth boss.
Defeat all bosses.
Defeat an enemy using an enemy's attack.
Defeat an enemy by preventing it from spawning.
Defeat an enemy by knocking back an ally.
Summon at least six times in one turn.
Use a container to prevent an enemy from spawning.
Use an enemy spawning to trigger a gas tank explosion.
Use an enemy's attack to trigger a gas tank explosion.
Use poison to trigger a gas tank explosion.
Use ice to prevent an enemy from spawning.
Traverse magma with Anguirus.
Use Rodan to carry an ally over magma.
Simultaneously destroy six separate nests with King Ghidorah.
Make King Ghidorah (Egg) invulnerable and knock it back to damage an enemy.
Use Ebirah's attack to deal six damage to an enemy in one go.
Use Mechagodzilla's attack to trigger a gas tank explosion on the other side of magma.
Make Mothra (Egg) invulnerable and use it to prevent spawning.
Use Mothra (Larva) to knock back four targets simultaneously.
Defeat an enemy using Mothra (Imago)'s attack.
Use Hedorah to knock back four targets at once.
Use Minilla to double a gas tank's damage and attack.
Use Biollante to drop an enemy into magma.
Use Destoroyah to attack over magma.
Destroy a nest using an attack from a Funguirus.
Use a Fungalbee's attack to trigger a gas tank explosion.
Fall into magma after charging with a Rhinoceroom.
Use Minilla to strengthen a Muscashroom.
Move an ally using a Dungshroom's attack.
Prevent a Slugshroom from splitting apart.
Use a Mantroom to destroy two separate nests simultaneously.
Use a Stagshroom to carry an ally over magma.
Clear all stages with the best score.
Find an Investigation Report.
Find all Investigation Reports.
Clear Story Mode.
Play the game for 20 hours.
Access Build Mode.
Play another player's stage.
Send a like to another player's stage.
Create a stage.
Encounter all enemy types.
Unlock all edit functions.
Accomplish all game achievements.