Here is the full list of all 29 STAR WARS: Dark Forces Remaster achievements.
Destroy the Arc Hammer
Defeat General Mohc!
Hijack the smuggler’s ship
Reach the cargo shuttle bay
Defeat Boba Fett!
Break into the vault & use the Nava Card
Locate the I.S.O building
Rescue Jan Ors
Locate the Nava Card
Find your gear
Find Imperial Navigational Evidence
Defeat a Kell Dragon with your bare hands
Blow up the Robotics Facility
Destroy the Phase 02 Dark Trooper
Find the Ice Cleats
Rescue Crix Madine
Place a tracking device on the smuggler’s ship
Destroy the Phase 01 Dark Trooper
Set a sequencer charge on the reactor
Obtain a sample of the metal used in Dark Trooper production
Pickup Code Key 5
Find the arms dealer Moff Rebus
Enter the Sewer
Pickup the Infrared Goggles
Find some evidence of the Dark Trooper
Find and restart the hydro-electric power generator
Return to your ship on the roof of the base
Steal the Death Star plans
Destroy a Mouse Droid