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