Complete the following tasks to unlock PlayStation 4 trophy rewards.

Trophy	How to unlock	Type
A Chance of Rain	Used geo-charges 10 times on a single level.	Silver
A Natural Disaster	Used all the different types of geo-charge on a level.	Bronze
A Stingy Warrior	Sold 10 weapons on a single level.	Bronze
An Important Position	Placed all types of weaponry accessible in the episode on a single tile.	Bronze
An Impregnable Fortress	Didn't let a single enemy reach the time machine throughout a level.	Silver
An Old Ruin	Completed a level without improving weaponry.	Bronze
Butcher	Destroyed 20,000 enemies throughout the entire game.	Gold
On the Edge	Completed a level with the time machine's health below 10 points.	Silver
Palaeontologist	Collected 10,000 bones in a single level.	Silver
Take your places!	Installed weapons on all the tiles accessible on a level.	Bronze
The Best Place	Unlocked a tile for i-volve on any level.	Bronze