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