Complete the following tasks to unlock PlayStation 4 trophy rewards.

Trophy	How to unlock	Type
Getting started	Collect 20 stars	Bronze
In my army now	Turn 10 soldiers into zombies	Bronze
No leader is perfect	Lose a zombie	Bronze
Non omnis moriar	Turn a human into a zombie	Bronze
Playing well	Collect 40 stars	Bronze
Snowrunner	Beat all winter levels with total time lower than 8 minutes	Silver
Speedrunner	Beat all summer levels with total time lower than 15 minutes	Silver
Summertime	Finish all summer levels	Silver
Ultimate Zombie Leader	Collect 90 stars	Gold
Winter has come	Finish all winter levels	Silver
Zombie Leader	Collect 60 stars	Silver