Here is the full list of all 134 Prime World: Defenders achievements.
Build 10000 towers.
Win 500 games.
Complete this level with 1 life.
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.
Save 200 Prime by the end of the level.
Save 350 Prime by the end of the level.
Save 300 Prime by the end of the level.
Complete the level with 1 life.
Complete the level without upgrading a tower.
Complete a level without detecting invisible enemies.
Complete the level building less than 9 towers.
Complete the level without using towers which target both air and ground enemies.
Save 250 Prime by the end of the level.
Inflict 50000 damage using magic.
Build 30 towers during battle.
Upgrade 10 towers to level 3.
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.
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.
Build 2500 towers.
Save 150 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.
Complete the level without using a Stone Tower.
Inflict 5000 damage using magic.
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.
Upgrade 5 towers to level 3.
Summon Next Wave 5 times in the battle.
Reach level 20.
Kill 20000 monsters.
Use magic 500 times.
Complete the level without using the Siege Tower.
Win 100 games.
Reach level 15.
Inflict 200000 damage using magic.
Build 800 towers.
Sell 100 towers.
Complete the level without using the Fire Tower.
Destroy all totems in the battle.
Summon Next Wave 300 times.
Destroy 200 totems.
Save 180 Prime by the end of the level.
Win 10 story levels on 3 stars.
Upgrade 300 towers.
Kill 8000 monsters.
Reach level 10.
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.
Use magic 100 times.
Win 25 games.
Inflict 20000 damage using magic.
Build 200 towers.
Kill 3000 monsters.
Upgrade 50 towers.
Win 5 story levels on 3 stars.
Destroy 40 totems.
Summon Next Wave 50 times.
Reach level 5.
Upgrade 5 towers to level 2.
Sell 3 towers in one battle.
Complete the level without using more than 1 Fire Tower.
Kill 500 monsters.
Use magic 20 times.
Win 5 games.
Destroy all totems during this battle.
Complete this level without using more than 1 Slingshot.
Use magic 5 times during the battle.
Save 100 Prime by the end of the level.
Complete the level using no more than 1 Poison Tower.
Summon Next Wave 3 times in a battle.
Summon Next Wave 5 times.