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