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