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 supernova difficulty.
Saved Edgewater permanently.
Brought robo-destruction to Edgewater.
Brokered peace between the Iconoclasts and MSI.
Dealt with the cartographer.
Completed The Outer Worlds on any difficulty.
Completed The Outer Worlds on hard difficulty.
Killed 20 enemies that were infected by spreading N-rays.
Landed on Tartarus.
Skipped the Hope.
Skipped the Hope into the sun.
Starred in an Odeon Pictures movie.
Used the medical inhaler 300 times.
Completed all companion quests.
Recruited all of the companions.
Killed 50 enemies with companion abilities.
Killed 50 enemies with a tossball stick or tossball blocker.
Had 75% or higher negative reputation with 3 factions.
Turned 100 enemies to ash with plasma damage.
Killed 30 automechanicals with shock damage.
Killed an enemy under the effects of 4 science weapons.
Succeeded at 3 dialog conversation checks with a single disguise.
Killed an enemy with a science weapon sneak attack during TTD, with a weakspot critical hit.
Wore 'A Nice Hat' and 'Chimaera' at the same time.
Killed an enemy that was hit with all 5 damage types.
Character level 30 reached.
Raised a skill to 100.
Learned the shocking truth about the colony.
Completed the SubLight quest lines.
Landed in Byzantium.
Won the battle of Stellar Bay.
Stopped the Monarch broadcasts.
Killed a mega creature.
Used dialog skills 30 times in conversations.
Simultaneously equipped Spacer's Choice brand clothing, headgear, and 4 weapons.
Simultaneously had bonuses for meat, carbohydrates, sugary drink, caffeine, and alcohol.
Hit 30 enemies in the groin during tactical time dilation.
Acquired 3 flaws.
Finished a companion's quest line.
Reached Stellar Bay.
Had 75% or higher positive reputation with 3 factions.
Sold 10,000 bits worth of items to vendors.
Killed 50 enemies with sneak attacks.
Saved the universe's greatest diet toothpaste recipe.
Got your very own ship.
Improved your gear 30 times through tinkering and mods.
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.
Completed Peril on Gorgon on any difficulty.
Found 20 Portable Phonographs.