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