Troll and I achievements

Collect all Troll idols and max out ability points

Drop the aeroplane in the crash scene

Collect all Otto idols and max out skill points

Collect all diary entries

All trophies acquired. Friends for life!

Complete the game in co-op mode

Destroy all hunter sirens

Close all fractures

Complete the crash scene in co-op mode

Kill 10 scavengers using spears while on Troll's back

Free the prisoner

Defeat Nico and his men