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