Here is the full list of all 54 Moribund achievements.
Collect 50 power ups
Destroy 10 armor plates
Witness 20 murders
Witness 20 escapes
Drop 10 icicles
Play 20 battles
Witness 20 immobilizations
Collect 10 power ups
Witness 100 murders
Witness 200 murders
Witness 100 immobilizations
Witness 200 immobilizations
Play 100 battles
Play 200 battles
Cause 20 explosions
Cause 100 explosions
Cause 200 explosions
Have 10 hives activated
Have 50 hives activated
Have 100 hives activated
Witness 10 suicides
Witness 50 suicides
Witness 100 suicides
Destroy 50 armor plates
Destroy 100 armor plates
Witness 100 escapes
Witness 200 escapes
Collect 100 power ups
Drop 50 icicles
Drop 100 icicles
Witness 10 Spore Cluster Activations
Witness 20 Fake Wall Activations
Witness 100 Fake Wall Activations
Witness 50 Spore Cluster Activations
Witness 200 Fake Wall Activations
Witness 100 Spore Cluster Activations
Witness 20 Flamethrower Activations
Witness 100 Flamethrower Activations
Witness 200 Flamethrower Activations
Complete the 1st challenge
Complete the 2nd challenge
Complete the 3rd challenge
Complete the 4th challenge
Complete the 5th challenge
Complete the 6th challenge
Complete the 7th challenge
Complete the 8th challenge
Complete the 9th challenge
Complete the 10th challenge
Complete the 11th challenge
Complete the 12th challenge
Complete the 13th challenge
Complete the 14th challenge
Complete the 15th challenge