Here is the full list of all 26 Pristine world achievements.
Build 50 towers
Destroy 10 monsters
Build main building of your race
Press X to Win
Build 250 towers
Build 750 towers
Build 1500 towers
Build 5000 towers
Destroy 500 monsters
Destroy 2500 monsters
Destroy 10000 monsters
Earn 1000 gold from all games
Earn 10000 gold from all games
Earn 100000 gold from all games
Upgrade 10 towers
Upgrade 250 towers
Upgrade 1000 towers
Don’t use any upgrades completing the mission
Use 10 spells during 1 mission
Complete mission without using spells
Make 1000 mobs wet
Shock 1000 mobs
Set 1000 mobs aflame
Sell 10 towers
Sell 100 towers
Sell 500 towers