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