Here is the full list of all 30 Prodeus achievements.
Find A Hidden Exit In A Level
Get 100 Enemies To Kill Each Other
Find All The Secrets In A Level
Kill All Enemies In A Level
Finish A Level with 100% On Any Difficulty
Finish A Level Without Taking Damage
Finish A Level Without Dying
Break 10 Shields
Finish The Campaign
Get 20 Enemies To Kill Each Other With Friendly Fire
Make 5 Purchases
Kill 10 Enemies In A Row
Kill 1000 Enemies
Pick Up 50 Ore
Finish 10 Levels
Obliterate 100 Enemies
Pick Up 25 Ore
Kill 5 Enemies In A Row
Make 1 Purchase
Kill 20 Enemies With Environmental Hazards
Pick Up 10 Ore
Kill 100 Enemies
Kill 10000 Enemies
Kill 10 Cloaked Enemies
Obliterate An Enemy With Your Fists
Finish A Level Without Killing Any Enemies
Finish A Level Without Dying On Hard Difficulty
Finish A Level With 100% On Hardest Difficulty
Finish The Campaign With 100% On All Levels
Melt 20 Enemies With The Chaos Caster