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