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