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