Here is the full list of all 39 Star Wars Jedi: Fallen Order achievements worth 1,000 gamerscore.
Completed the story
Scanned all enemy types
Opened the Vault
Unlocked all Jedi skills
Completed all of BD-1's holomaps
Collected all chests and secrets
Recruited all possible crew members for the Mantis
Defeated a former Jedi Master
Found all of BD-1's encrypted logs
Have a fully grown terrarium
Found all of BD-1's stim canisters
Explored the crashed Venator
Defeated an enemy with a hacked droid
Hit a single enemy with all lightsaber types
Crafted a lightsaber of your own
Defeated the winged terror on Dathomir
Discovered 75 Force Echoes
Defeated an enemy using only kicks
Defeated four mysterious creatures
Sliced an oggdo's tongue
Precision Evaded 100 attacks
Defeated the Ninth Sister
Defeated 20 enemies with explosives
Defeated 3 enemies using a single lightsaber throw
Defeated each type of Bounty Hunter
Defeated an enemy with their own Slowed blaster bolt
Defeated 25 enemies while they are under the effect of Empowered Slow
Completed the Tomb of Miktrull
Parried 100 enemies
Sent 25 enemies over the edge
Freed the Wookiees from Imperial imprisonment
Defeated an enemy by colliding them with another enemy
Completed the Tomb of Eilram
Defeated 50 enemies with reflected blaster bolts
Kicked a phillak that has kicked you
Customized the look of Cal, BD-1, and the Mantis
Discovered the Bogano Vault
Fully customized your lightsaber
Joined the crew