Here is the full list of all 20 Expeditions: A MudRunner Game achievements.
Earn 1 500 000 credits in total
Drive a total of 200 km
Complete all expeditions in Arizona
Fix 10000 points worth of damage in total
Fix 2000 points worth of damage in total
Drive a total of 100 km
Purchase 10 vehicles
Pick up 100 removable anchors
Earn 500 000 credits in total
Purchase your first vehicle
Recover your vehicle to the base over 5 times
Complete all expeditions in Little Colorado
Find your first upgrade stash
Complete your first expedition
Complete any expedition, earning at least 1 bonus reward
Install your first car upgrade
Purchase 20 vehicles
Complete all expeditions in Carpathians
Complete all expeditions in the game
Recover your vehicle to the base over 100 times