Here is the full list of all 48 Overland achievements.
Find every creature.
Clear the Desert blockade.
Travel 2000 miles in one trip.
Drive out in an SUV.
Clear the Mountains blockade.
Clear the Grasslands blockade.
Clear a biome without going over five fuel.
Travel 1000 miles in one trip.
Clear the Woodlands blockade.
Escape an Out of Gas scenario.
Drive out in a truck.
Give a dog some nice pats.
Invite a dog to join your party.
Trade items with a camp.
Clear the East Coast blockade.
Revive a survivor.
Complete the introduction.
Drive out in a van.
Clear a biome without killing anything.
Steal items from a camp.
Put every equipment on one person.
Put every attachment onto one vehicle.
Complete the game without inviting any humans.
Complete the game without inviting anyone.
Complete the game with your starting car.
Complete the game with your first character.
I mean, we all have regrets.
Collect every item.
Complete the game with Countdown enabled.
Escape the East Coast without losing anyone.
Reach the beach.
Complete the game in one trip.
Escape the Woodlands without losing anyone.
Discover a Scenic Overlook in the Woodlands.
Discover the Woodlands Landmark site.
Escape the Grasslands without losing anyone.
Discover a Scenic Overlook in the Grasslands.
Discover the Grasslands Landmark site.
Escape the Mountains without losing anyone.
Discover a Scenic Overlook in the Mountains.
Discover the Mountains Landmark site.
Escape the Desert without losing anyone.
Discover a Scenic Overlook in the Desert.
Discover the Desert Landmark site.
Clear the Basin blockade.
Escape the Basin without losing anyone.
Discover a Scenic Overlook in the Basin.
Discover the Basin Landmark site.