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.
While using a jump pack, knock yourself into a ragdoll state.
Kill a Charger with a resupply pod.
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 a full Extreme difficulty Blitz mission and extract in under 6 minutes.
Have 6 orbital barrage stratagems in the same place at the same time.
Complete at least 100 missions.
Kill 100 enemies using fire damage during the same mission.
Fire at least 150 rounds in one burst, killing at least 10 enemies.
Reach max level on one ship module.
Throw back a live grenade.
Upgrade all ship modules at least 1 level.
Play at least 50 missions.
Provide assisted reload for a teammate.
Fly at least 25 meters from the shockwave of an explosion.
Be injured in all limbs at the same time.
Kill 5,000 enemies.
Extract with at least 15 common samples.
Heal another player using stims.
Kill a bug warrior with a shotgun within 1 meter.
Defeat a Bile Titan
Complete a Stalker Hive tactical objective.
Complete 10 tactical objectives.
Play a planet defense mission.
Kill 25 enemies with one stratagem.
Kill a target at a distance of over 100m.
Complete a mission but fail to extract.
Kill 150 enemies during the same mission.
Play 1 Bug Mission.
Extract from a mission during nighttime.
Customize your Helldiver with new cape, armor, and helmet.
Shoot off both arms on a Hulk and then extract while it's alive.
Extract with a full team on a Hard difficulty or more mission.
Extract at least 15 rare samples from a mission as a team.
Extract after the timer reaches zero.
Play 1 Bot Mission.
Defeat a Hulk.
Complete Basic Training.