During your time exploring ‘Hell-A’, you’ll come across a whole range of "non-Story" Side Quests, Lost & Found Quests weapon quests & Lost & Found missing persons quests, the latter being fairly lengthy, multi-phased scavenger hunts with a worthwhile reward at the end of the trail. You’ll find that most non-Story Quests are picked up randomly, issued by NPCs, or discovered over a radio transmitter in one of the safe zones. There are ten regions to explore in Dead Island 2’s rendition of Los Angeles, so keep your eyes peeled for additional quests, as marked by blue diamond and red diamond markers. Complete forty of them, and you’ll acquire this achievement.

Check out our full list of Side Quests, Lost & Found Quests weapon quests & Lost & Found missing persons quests through the links.