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