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