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