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