Full list of all 68 The Outer Worlds achievements worth 1,390 gamerscore. It takes around 40-50 hours to unlock all of the achievements in the base game.
The base game contains 48 achievements worth 1,000 Gamerscore, and there are 2 DLC packs containing 20 achievements worth 390 Gamerscore.
Wore 'A Nice Hat' and 'Chimaera' at the same time.
Brokered peace between the Iconoclasts and MSI.
Killed 50 enemies with companion abilities.
Had 75% or higher negative reputation with 3 factions.
Killed 50 enemies with sneak attacks.
Completed The Outer Worlds on supernova difficulty.
Skipped the Hope into the sun.
Saved Edgewater permanently.
Dealt with the cartographer.
Turned 100 enemies to ash with plasma damage.
Used the medical inhaler 300 times.
Completed The Outer Worlds on any difficulty.
Completed The Outer Worlds on hard difficulty.
Landed on Tartarus.
Skipped the Hope.
Character level 30 reached.
Brought robo-destruction to Edgewater.
Learned the shocking truth about the colony.
Succeeded at 3 dialog conversation checks with a single disguise.
Killed 20 enemies that were infected by spreading N-rays.
Completed the SubLight quest lines.
Acquired 3 flaws.
Killed 30 automechanicals with shock damage.
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.
Completed all companion quests.
Simultaneously had bonuses for meat, carbohydrates, sugary drink, caffeine, and alcohol.
Killed an enemy under the effects of 4 science weapons.
Simultaneously equipped Spacer's Choice brand clothing, headgear, and 4 weapons.
Starred in an Odeon Pictures movie.
Raised a skill to 100.
Landed in Byzantium.
Finished a companion's quest line.
Recruited all of the companions.
Saved the universe's greatest diet toothpaste recipe.
Won the battle of Stellar Bay.
Stopped the Monarch broadcasts.
Improved your gear 30 times through tinkering and mods.
Had 75% or higher positive reputation with 3 factions.
Hit 30 enemies in the groin during tactical time dilation.
Sold 10,000 bits worth of items to vendors.
Used dialog skills 30 times in conversations.
Reached Stellar Bay.
Killed a mega creature.
Got your very own ship.
Killed 50 enemies with a tossball stick or tossball blocker.
Recruited a companion.
Landed in Emerald Vale.
Complete Peril on Gorgon on any difficulty.
Power the reactor.
Destroy the Synthesizer.
Listen to Lucky Montoya's message.
Find Olivia Ambrose's journal.
Find Lucky Montoya's body.
Deliver the journal to Lucien.
Find 20 Portable Phonographs.
Achieve a compromise between Olivia and Minnie.
Acquire Special Delivery, P.E.T., and Employee Benefits.
Complete Murder on Eridanos on any difficulty.
Kill the Slug Queen.
Choose to either infect or cure Eridanos.
Receive an invitation to Eridanos.
Use the Discrepancy Amplifier for the first time.
Investigate every suspect and report your findings to Administrator Ludovico.
Discover the biggest secret in the aetherwave industry.
Acquire Spectrum Gatling, The Needler, and Udder Buddy.
Kill 50 Infected Humans or Parasites.
Ask a companion to be the Bad Inspector.