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