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