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