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