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