Here is the full list of all 51 Jurassic Park: The Game achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
Reunite the group.
Get out of the tunnels.
Use three flares while finding the tunnel exit.
Escape the Troodon den.
Escape the den, flawlessly.
Talk Yoder out of his killing rage.
Complete Jurassic Park: The Depths
Open the power plant blast doors.
Make no mistakes during the raptor attack in the tunnels.
Survive the raptor attack in the tunnels.
Fight a velociraptor with no slipups.
Recover the canister.
Get to the canister without alerting the T.rex.
Get Yoder to agree to help sell the embryos.
Witness the helicopter crash.
Complete Jurassic Park: The Cavalry
Escape to the water tower with no slipups.
Free the Parasaurolophus.
Take a ride on the Bone Shaker.
Find the Mr. DNA sign.
Find the kidnapper's trail.
Show your jungle hacking chops.
Contact the rescuers.
Help Nima treat her wound.
Land outside the Visitor's Center.
Complete Jurassic Park: The Intruder.
Survive the tyrant king.
Make your Spanish teacher proud.
Get out from underfoot.
Survive the two-crested lizard.
Find Nedry's ID badge.
Infiltrate the park.
See every unique location visible with the binoculars.
Escape the jungle.
Say things to Jess that no parent should ever say.
Stay alive from beginning to end.
Fight Yoder with no slipups.
Learn all there is to learn about Nima's past.
Choose to save Jess when racing for the docks.
Choose to save the can when racing for the docks.
Withstand the surprise attack with no blunders.
Survive the Bone Shaker with no mistakes.
Overhear all of Dr. Sorkin's conversation with Gerry.
Pick up the antenna without being shocked.
Convince Yoder to help sell the canister with the minimum number of choices.
Escape flawlessly from the T.rex by way of the Parasauralophus Pen.
Arrive at the beach.
Survive Dr. Sorkin's attempt to free the Mosasaur, perfectly.
Make no mistakes when fleeing the T.rex at the docks.
Complete Jurassic Park: The Survivors
At the docks, get Miles to offer Nima a bonus.