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.
Used the medical inhaler 300 times.
Improved your gear 30 times through tinkering and mods.
Hit 30 enemies in the groin during tactical time dilation.
Killed 50 enemies with a tossball stick or tossball blocker.
Killed 20 enemies that were infected by spreading N-rays.
Simultaneously had bonuses for meat, carbohydrates, sugary drink, caffeine, and alcohol.
Acquired 3 flaws.
Turned 100 enemies to ash with plasma damage.
Had 75% or higher negative reputation with 3 factions.
Killed 50 enemies with companion abilities.
Killed an enemy with a science weapon sneak attack during TTD, with a weakspot critical hit.
Killed an enemy that was hit with all 5 damage types.
Killed an enemy under the effects of 4 science weapons.
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.
Killed 30 automechanicals with shock damage.
Landed on Tartarus.
Wore 'A Nice Hat' and 'Chimaera' at the same time.
Completed all companion quests.
Skipped the Hope.
Character level 30 reached.
Succeeded at 3 dialog conversation checks with a single disguise.
Completed the SubLight quest lines.
Starred in an Odeon Pictures movie.
Learned the shocking truth about the colony.
Landed in Byzantium.
Finished a companion's quest line.
Brokered peace between the Iconoclasts and MSI.
Raised a skill to 100.
Stopped the Monarch broadcasts.
Sold 10,000 bits worth of items to vendors.
Killed 50 enemies with sneak attacks.
Killed a mega creature.
Recruited all of the companions.
Reached Stellar Bay.
Had 75% or higher positive reputation with 3 factions.
Used dialog skills 30 times in conversations.
Saved the universe's greatest diet toothpaste recipe.
Got your very own ship.
Recruited a companion.
Landed in Emerald Vale.
Completed The Outer Worlds on supernova difficulty.
Won the battle of Stellar Bay.
Saved Edgewater permanently.
Brought robo-destruction to Edgewater.
Dealt with the cartographer.
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.