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