Here is the full list of all 134 Prime World: Defenders achievements.
Complete a level without detecting invisible enemies.
Complete the level without using any magic.
Complete the level without using towers which deal area of effect damage (splash, cone, chain).
Complete the level without using utility towers (Prime injector, Slow, Stun, Accursed and Detector towers)
Complete the level without using towers which target only air enemies.
Complete the level building less than 9 towers.
Build 2500 towers.
Save 200 Prime by the end of the level.
Complete the level building less than 7 towers.
Complete this level using magic no more than 3 times.
Complete the level without upgrading a tower.
Complete the level without using towers which range more then 300.
Sell 10 towers in one battle.
Summon Next Wave 5 times in a battle.
Summon Next Wave 200 times in a battle.
Use magic 12 times during the battle.
Complete the level without using magic.
Summon Next Wave 10 times during battle.
Complete the level without using a Stone Tower.
Win 20 story levels on 3 stars.
Save 275 Prime by the end of the level.
Complete the level building less than 11 towers.
Upgrade 1500 towers.
Save 150 Prime by the end of the level.
Save 175 Prime by the end of the level.
Inflict 5000 damage using magic.
Use magic 500 times.
Win 100 games.
Save 225 Prime by the end of the level.
Upgrade 5 towers to level 3.
Summon Next Wave 5 times in the battle.
Complete the level without using the Siege Tower.
Reach level 20.
Build 800 towers.
Save 180 Prime by the end of the level.
Kill 20000 monsters.
Complete the level without using the Fire Tower.
Destroy all totems in the battle.
Win 10 story levels on 3 stars.
Destroy 200 totems.
Reach level 15.
Upgrade 300 towers.
Inflict 200000 damage using magic.
Summon Next Wave 300 times.
Kill 8000 monsters.
Use magic 100 times.
Reach level 10.
Use magic 5 times during the battle.
Complete the level without using Magic light.
Complete the level without using the Wooden Tower.
Destroy 7 totems.
Complete the level using no more than 1 Poison Tower.
Complete the level without using more than 1 Fire Tower.
Upgrade 5 towers to level 2.
Win 5 games.
Win 25 games.
Destroy 40 totems.
Save 100 Prime by the end of the level.
Summon Next Wave 3 times in a battle.
Destroy all totems during this battle.
Complete this level without using more than 1 Slingshot.
Sell 3 towers in one battle.
Complete this level with under 13 towers.
Build 200 towers.
Kill 500 monsters.
Kill 3000 monsters.
Inflict 20000 damage using magic.
Inflict 50000 damage using magic.
Summon Next Wave 5 times.
Summon Next Wave 50 times.
Reach level 5.
Use magic 20 times.
Upgrade 50 towers.
Win 5 story levels on 3 stars.
Complete this level with 1 life.
Build 30 towers during battle.
Complete the level with 1 life.
Build 10000 towers.
Win 500 games.
Sell 100 towers.
Complete the level without using towers which target both air and ground enemies.
Save 300 Prime by the end of the level.
Summon Next Wave 8 times in a battle.
Upgrade 10 towers to level 3.
Save 250 Prime by the end of the level.
Save 350 Prime by the end of the level.
Save 400 Prime by the end of the level.
Summon Next Wave 10 times in a battle.