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 SubLight quest lines.
Completed all companion quests.
Recruited all of the companions.
Completed The Outer Worlds on hard difficulty.
Completed The Outer Worlds on supernova difficulty.
Brought robo-destruction to Edgewater.
Killed 30 automechanicals with shock damage.
Dealt with the cartographer.
Improved your gear 30 times through tinkering and mods.
Completed The Outer Worlds on any difficulty.
Landed on Tartarus.
Finished a companion's quest line.
Acquired 3 flaws.
Turned 100 enemies to ash with plasma damage.
Killed an enemy that was hit with all 5 damage types.
Character level 30 reached.
Killed 20 enemies that were infected by spreading N-rays.
Skipped the Hope.
Learned the shocking truth about the colony.
Raised a skill to 100.
Had 75% or higher negative reputation with 3 factions.
Landed in Byzantium.
Used dialog skills 30 times in conversations.
Won the battle of Stellar Bay.
Stopped the Monarch broadcasts.
Sold 10,000 bits worth of items to vendors.
Reached Stellar Bay.
Killed a mega creature.
Got your very own ship.
Recruited a companion.
Landed in Emerald Vale.
Killed 50 enemies with companion abilities.
Hit 30 enemies in the groin during tactical time dilation.
Killed 50 enemies with sneak attacks.
Used the medical inhaler 300 times.
Killed 50 enemies with a tossball stick or tossball blocker.
Had 75% or higher positive 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.
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 the universe's greatest diet toothpaste recipe.
Saved Edgewater permanently.
Starred in an Odeon Pictures movie.
Skipped the Hope into the sun.
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.