Here is the full list of all 39 STAR WARS Jedi: Fallen Order achievements. It takes around 25-30 hours to unlock all of the achievements on Windows.
Have a fully grown terrarium
Complete the story
Scan all enemy types
Defeat 25 enemies while they are under the effect of Empowered Slow
Open the Vault
Complete all of BD-1's holomaps
Collect all chests and secrets
Recruit all possible crew members for the Mantis
Defeat a former Jedi Master
Hit a single enemy with all lightsaber types
Find all of BD-1's encrypted logs
Defeat an enemy with their own Slowed blaster bolt
Unlock all Jedi skills
Craft a lightsaber of your own
Find all of BD-1's stim canisters
Defeat four mysterious creatures
Defeat the winged terror on Dathomir
Precision Evade 100 attacks
Defeat 3 enemies using a single lightsaber throw
Defeat an enemy using only kicks
Slice an oggdo's tongue
Discover 75 Force Echoes
Kick a phillak that has kicked you
Explore the crashed Venator
Defeat each type of Bounty Hunter
Defeat 20 enemies with explosives
Defeat the Ninth Sister
Complete the Tomb of Miktrull
Send 25 enemies over the edge
Defeat an enemy by colliding them with another enemy
Free the Wookiees from Imperial imprisonment
Defeat an enemy with a hacked droid
Customize the look of Cal, BD-1, and the Mantis
Defeat 50 enemies with reflected blaster bolts
Parry 100 enemies
Complete the Tomb of Eilram
Fully customize your lightsaber
Discover the Bogano Vault
Join the crew