Here is the full list of all 38 HELLDIVERS 2 achievements. It takes around 50-60 hours to unlock all of the achievements on Windows.
Complete a full Extreme difficulty Blitz mission and extract in under 6 minutes.
Reach max level on one ship module.
Kill a Charger with a resupply pod.
Extract at least 15 rare samples from a mission as a team.
Extract with at least 15 common samples.
Complete a full Hard difficulty mission or higher without anyone firing their primary or support weapon.
Have 6 orbital barrage stratagems in the same place at the same time.
Upgrade all ship modules at least 1 level.
Shoot off both arms on a Hulk and then extract while it's alive.
While using a jump pack, knock yourself into a ragdoll state.
Complete a Stalker Hive tactical objective.
Complete at least 100 missions.
Kill a bug warrior with a shotgun within 1 meter.
Defeat a Bile Titan
Provide assisted reload for a teammate.
Kill 100 enemies using fire damage during the same mission.
Complete 10 tactical objectives.
Play at least 50 missions.
Kill 5,000 enemies.
Complete an Extreme difficulty mission or higher without anyone dying.
Extract with a full team on a Hard difficulty or more mission.
Complete a mission but fail to extract.
Kill a target at a distance of over 100m.
Fire at least 150 rounds in one burst, killing at least 10 enemies.
Kill 25 enemies with one stratagem.
Throw back a live grenade.
Defeat a Hulk.
Be injured in all limbs at the same time.
Heal another player using stims.
Extract after the timer reaches zero.
Customize your Helldiver with new cape, armor, and helmet.
Play 1 Bug Mission.
Extract from a mission during nighttime.
Fly at least 25 meters from the shockwave of an explosion.
Play 1 Bot Mission.
Play a planet defense mission.
Kill 150 enemies during the same mission.
Complete Basic Training.