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