Here is the full list of all 28 Organ Trail: Director's Cut achievements.
[Secret] sacrifices himself for the greater good.
Make it to Safe Haven with George Romero in your party.
Beat the game five times.
Beat the game on hard.
Make it to Safe Heaven without starting with any food or buying any food.
Your party dead, you made it to Safe Heaven alone.
Kill "Ryan" at the start of a game.
Become a zombie.
Someone died of dysentery.
Have $1000 on you.
Fully upgrade your station wagon.
Make it to Safe Heaven without starting with any money or selling anything.
Investigate 30 points of interest.
Stop at 50 tombstones.
Use 50 medkits
Find your own grave.
Kill 500 zombies
The station wagon breaks down 4 times during the trip.
Get attacked by zombies 20 times during scavenging.
Survive all 3 boss encounters.
Successfully forde a horde of zombies 3 times.
Don't pull the trigger
Beat the game without trading anything on the road.
Scavenge more than double the supplies you can carry.
Always choose to shoot your way through zombie hoardes.
Kill all the other members of your party while they are healthy.
Put down an infected party member who has passed out.
Kill 25 zombies without missing a shot.