Here is the full list of all 39 HELLDIVERS achievements.
Kill 100,000 enemies.
Fully upgrade all non DLC Weapons and Stratagems.
Achieve the rank of Grand Lord (Rank 25).
Defeat an Illuminate Great Eye.
Complete a difficulty 7 or higher mission without triggering any alarms.
Complete a difficulty 7 or higher mission against the Cyborgs without taking damage from any enemy.
In a 4 player game, on a Friday, have all players sitting in an APC or HAV at the same time.
Complete a mission using only Stratagems.
Kill a Bug Tank with a Resupply Stratagem Hellpod.
Complete a difficulty 4 or higher mission in 5 minutes or less.
Kill a Bug or Illuminate assassination target by running it over with the APC or HAV.
Kill a Bug Tank, Bug Behemoth, or Cyborg IFV by having the extraction shuttle land on it.
While in melee range from a Cyborg Warlord, use the "NO" communication command.
Defeat a Bug Hive Lord.
Defeat a Cyborg Siegemech.
Take part in a successful defense of a capital city by completing at least one mission.
Kill an Illuminate Obelisk while it is closed.
Complete at least one planet in a successful Galactic Campaign.
Use the Reinforce Stratagem while downed and the last Helldiver alive on a difficulty 8 or higher mission with 4 players.
Kill 10,000 enemies.
Complete a volcanic type planet of difficulty 5 or more.
Complete all missions on a planet with difficulty 10 or higher.
Complete a difficulty 10 or higher mission without a single death.
Destroy a Bug Nest, Cyborg AA, or Illuminate Beacon with anything but the NUX-223 Hellbomb.
Achieve the rank of Captain (Rank 13).
Extract from a difficulty 8 or higher mission with 4 players where all 4 get on the shuttle.
Successfully complete an escort objective where all 4 NPCs survive.
Face each new enemy once.
Play at least once against all enemy races.
Play at least once on a desert, a forest, and a snow planet.
Do 25 capespins in a row, without moving, while on the ship bridge.
Complete a mission with over 300 shots fired and 80% accuracy or better.
Kill 7 enemies within a very short time using only your primary weapon.
Achieve the rank of Sergeant (Rank 7).
Take part in a successful final assault on an enemy's home planet by completing at least one mission.
Customize your character.
Join another game through the matchmaking system.
Complete a mission.
Finish the Training.