There are currently 28 achievements in Organ Trail Director's Cut. Here is a list of them:
SilverBullet - Kill 25 zombies without missing a shot.
Make the Call - Put down an infected party member who has passed out.
Fording Master - Successfully forde a herd of zombies 3 times.
Overstoked - Scavenge more than double the supplies you can carry.
Zombicide - Kill 500 zombies
Zombie Chew Toy - Get attacked by zombies 20 times during scavenging.
Deja Vu - Find your own grave.
Big Boss - Survive all 3 boss encounters.
This Car's A Lemon - The station wagon breaks down 4 times during the trip.
I Can't Do It - Don't pull the trigger
Penniless - Make it to Safe Haven without starting with any money or selling anything.
Pimp Your Ride - Fully upgrade your station wagon.
Life On The Other Side - Become a zombie
Don, Bill & Paul's Curse - Someone died of dysentery.
Pills Here - Use 50 medkits
Scavenger Pro - Make it to Safe Haven without starting with any food or buying any food.
Fat Cat - Have $1,000 on you.
The Loner - Kill all other members of your party while they are healthy.
Night Of The Living Dev - Kill "Ryan" at the start of a game.
True Survivor - Beat the game on hard.
Trader Jose's - Beat the game without trading anything on the road.
I Know A Guy... - Make it to Safe Haven with George Romero in your party.
There Can Be Only One - Your party dead, you it to Safe Haven alone.
Sleuth - Investigate 30 points of interest.
Marathon - Beat the game 5 times.
[Secret] - [Secret] sacrifices himself for the greater good.
Grave Robber - Stop at 50 tombstones.
Take No Prisoners - Always choose to shoot your way through zombie hordes.