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