Here is the full list of all 134 Prime World: Defenders achievements.
Complete the level without using utility towers (Prime injector, Slow, Stun, Accursed and Detector towers)
Summon Next Wave 200 times in a battle.
Complete the level without using any magic.
Summon Next Wave 10 times in a battle.
Save 400 Prime by the end of the level.
Upgrade 50 towers.
Complete a level without detecting invisible enemies.
Complete the level building less than 9 towers.
Reach level 20.
Save 200 Prime by the end of the level.
Complete the level without using towers which target both air and ground enemies.
Save 250 Prime by the end of the level.
Summon Next Wave 8 times in a battle.
Complete the level without upgrading a tower.
Save 350 Prime by the end of the level.
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.
Save 300 Prime by the end of the level.
Inflict 20000 damage using magic.
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.
Reach level 15.
Summon Next Wave 5 times in a battle.
Use magic 12 times during the battle.
Complete the level without using magic.
Summon Next Wave 10 times during battle.
Kill 8000 monsters.
Save 275 Prime by the end of the level.
Complete the level building less than 11 towers.
Win 20 story levels on 3 stars.
Save 150 Prime by the end of the level.
Complete the level without using a Stone Tower.
Summon Next Wave 300 times.
Save 175 Prime by the end of the level.
Build 30 towers during battle.
Summon Next Wave 5 times in the battle.
Save 225 Prime by the end of the level.
Complete the level without using the Siege Tower.
Use magic 100 times.
Reach level 10.
Complete the level without using the Fire Tower.
Destroy all totems in the battle.
Win 25 games.
Kill 3000 monsters.
Summon Next Wave 50 times.
Save 180 Prime by the end of the level.
Win 10 story levels on 3 stars.
Complete the level without using Magic light.
Complete this level with under 13 towers.
Complete the level without using the Wooden Tower.
Destroy 7 totems.
Destroy 40 totems.
Build 200 towers.
Sell 3 towers in one battle.
Win 5 story levels on 3 stars.
Reach level 5.
Use magic 5 times during the battle.
Upgrade 5 towers to level 2.
Complete the level without using more than 1 Fire Tower.
Destroy all totems during this battle.
Complete this level without using more than 1 Slingshot.
Kill 500 monsters.
Win 5 games.
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.
Upgrade 5 towers to level 3.
Complete this level with 1 life.
Inflict 5000 damage using magic.
Complete the level with 1 life.
Build 800 towers.
Build 2500 towers.
Build 10000 towers.
Kill 20000 monsters.
Inflict 50000 damage using magic.
Inflict 200000 damage using magic.
Use magic 500 times.
Win 100 games.
Win 500 games.
Sell 100 towers.
Upgrade 300 towers.
Upgrade 1500 towers.
Destroy 200 totems.
Sell 10 towers in one battle.
Upgrade 10 towers to level 3.