Here is the full list of all 45 Deadland 4000 achievements.
Reach the end of the Deadland as the Firefighter
Reach the end of the Deadland as the Child
Reach the end of the Deadland as the Hobo
Reach the end of the Deadland as the Veteran
Reach the end of the Deadland as the Punk
Reach the end of the Deadland as the Druid
Reach the end of the Deadland as the Hiker
Reach the end of the Deadland as the Agent
Reach the end of the Deadland as the Experiment
Successfully cross the Deadland and return as the Child
Successfully cross the Deadland and return as the Hobo
Successfully cross the Deadland and return as the Veteran
Successfully cross the Deadland and return as the Punk
Successfully cross the Deadland and return as the Druid
Successfully cross the Deadland and return as the Hiker
Successfully cross the Deadland and return as the Agent
Successfully cross the Deadland and return as the Experiment
Successfully cross the Deadland and return as the Firefighter
Successfully cross the Deadland and return as all nine classes
Reach the end of the Deadland as all nine classes
Start the Ascension
Collect 25 unique stickers
Collect 50 unique stickers
Collect 100 unique stickers