Full list of all 68 The Outer Worlds achievements. It takes around 40-50 hours to unlock all of the achievements in the base game on Windows.
The base game contains 48 achievements, and there are 2 DLC packs containing 20 achievements.
Completed The Outer Worlds on hard difficulty.
Completed The Outer Worlds on supernova difficulty.
Killed 50 enemies with sneak attacks.
Killed an enemy that was hit with all 5 damage types.
Killed an enemy with a science weapon sneak attack during TTD, with a weakspot critical hit.
Killed an enemy under the effects of 4 science weapons.
Killed 20 enemies that were infected by spreading N-rays.
Used the medical inhaler 300 times.
Had 75% or higher negative reputation with 3 factions.
Completed The Outer Worlds on any difficulty.
Landed on Tartarus.
Skipped the Hope.
Skipped the Hope into the sun.
Killed 50 enemies with companion abilities.
Killed 30 automechanicals with shock damage.
Character level 30 reached.
Brought robo-destruction to Edgewater.
Saved Edgewater permanently.
Learned the shocking truth about the colony.
Dealt with the cartographer.
Starred in an Odeon Pictures movie.
Completed the SubLight quest lines.
Completed all companion quests.
Wore 'A Nice Hat' and 'Chimaera' at the same time.
Killed 50 enemies with a tossball stick or tossball blocker.
Turned 100 enemies to ash with plasma damage.
Landed in Byzantium.
Improved your gear 30 times through tinkering and mods.
Succeeded at 3 dialog conversation checks with a single disguise.
Finished a companion's quest line.
Raised a skill to 100.
Brokered peace between the Iconoclasts and MSI.
Sold 10,000 bits worth of items to vendors.
Won the battle of Stellar Bay.
Stopped the Monarch broadcasts.
Hit 30 enemies in the groin during tactical time dilation.
Acquired 3 flaws.
Had 75% or higher positive reputation with 3 factions.
Recruited all of the companions.
Used dialog skills 30 times in conversations.
Reached Stellar Bay.
Saved the universe's greatest diet toothpaste recipe.
Simultaneously had bonuses for meat, carbohydrates, sugary drink, caffeine, and alcohol.
Got your very own ship.
Killed a mega creature.
Simultaneously equipped Spacer's Choice brand clothing, headgear, and 4 weapons.
Recruited a companion.
Landed in Emerald Vale.
Completed Murder on Eridanos on any difficulty.
Acquired Spectrum Gatling, The Needler, and Udder Buddy.
Received an invitation to Eridanos.
Acquired Special Delivery, P.E.T., and Employee Benefits.
Found 20 Portable Phonographs.
Completed Peril on Gorgon on any difficulty.