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