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