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