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