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.
Had 75% or higher negative reputation with 3 factions.
Saved the universe's greatest diet toothpaste recipe.
Killed 50 enemies with companion abilities.
Killed an enemy under the effects of 4 science weapons.
Killed 30 automechanicals with shock damage.
Killed 50 enemies with a tossball stick or tossball blocker.
Killed 20 enemies that were infected by spreading N-rays.
Turned 100 enemies to ash with plasma damage.
Used the medical inhaler 300 times.
Completed The Outer Worlds on supernova difficulty.
Brought robo-destruction to Edgewater.
Saved Edgewater permanently.
Won the battle of Stellar Bay.
Completed The Outer Worlds on any difficulty.
Completed The Outer Worlds on hard difficulty.
Landed on Tartarus.
Skipped the Hope.
Hit 30 enemies in the groin during tactical time dilation.
Sold 10,000 bits worth of items to vendors.
Killed an enemy with a science weapon sneak attack during TTD, with a weakspot critical hit.
Simultaneously equipped Spacer's Choice brand clothing, headgear, and 4 weapons.
Simultaneously had bonuses for meat, carbohydrates, sugary drink, caffeine, and alcohol.
Killed an enemy that was hit with all 5 damage types.
Acquired 3 flaws.
Character level 30 reached.
Succeeded at 3 dialog conversation checks with a single disguise.
Learned the shocking truth about the colony.
Dealt with the cartographer.
Completed the SubLight quest lines.
Completed all companion quests.
Brokered peace between the Iconoclasts and MSI.
Stopped the Monarch broadcasts.
Wore 'A Nice Hat' and 'Chimaera' at the same time.
Recruited all of the companions.
Used dialog skills 30 times in conversations.
Finished a companion's quest line.
Reached Stellar Bay.
Had 75% or higher positive reputation with 3 factions.
Starred in an Odeon Pictures movie.
Killed a mega creature.
Landed in Byzantium.
Killed 50 enemies with sneak attacks.
Improved your gear 30 times through tinkering and mods.
Got your very own ship.
Raised a skill to 100.
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.