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