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