Located on the wall of the restrooms near Fizztop Mountain.

Located behind a bench on the wall near the upper entrance to Spacewalk.

Look for it on the wall near Star Control next to the employee entrance.

Located inside Mad Mulligan's Minecart Coaster along the main quest route. Look for the mannequin bent over.

Located the Dry Gulch graveyard behind a tombstone.

Located along the quantum river in the World of Refreshment ride. Look for it on the side of a saloon.

Located in the funhouse in the spinning disk room. It is behind a red door, two doors down from the one you entered. Be careful as the room is highly irradiated.

Located in the tall destroyed tower just outside the main entrance to King Cola's Castle.

Located in the hedge maze. Make a right when entering, another right and it will be at a dead end.

Located behind the gorilla statue outside the primate exhibit. Look for a gap in the bush to access it.

This medallion is at the end of the Nuka-Galaxy ride, in the exit corridor.

This medallion is at the end of the Vault-Tec: Among the Stars exhibit.

This medallion is located at the base of the ferris wheel.

This medallion is in the queue area for the Nuka-Racers ride.

This medallion is located in the gift shop area near the exit of the ride.

This medallion is located in cappy's treehouse at the center of the hedge maze. Take the yellow lift up to the top.

This medallion is located at the entrance to World of Refreshment.

At the first exhibit on the tour, walk to the back where you'll find an expert-locked door. Lockpick the door to find a star core inside.

Located in the control room of the residential section.

Located in the reactor room.

Located in the bathroom.

Located at the rear of the main theater section.

Located upstairs in the projector room.

Located in the kitchen behind a locked door.

There are two star cores located in the RobCo Battlezone arena. Entering the arena will trigger a battle, and the doors will shut. You must defeat multiple waves of robots to unlock the doors.

Head downstairs to the robot maintenance area to find a star core in a red computer console.

Unlock the door to the left of the entrance. It has an employees only sign. Take the stairs to a control room to find the next two star cores.

Located in the gift shop behind the counter.

Located in the Spacewalk tunnel.

Located by the body of Kendall near the mainframe.

Inside a display case in Starport Nuka on the second floor.

Located in the employees only area by some dumpsters and a body.

Located at the top of the Arcjet Tower.

After exiting Nuka-Galaxy, check behind the gate for a star core.

After you've turned the power on in Power Play, take the elevator in Starport Nuka to the top floor to find a star core.

Go through the door located in the boarding area for the ride. There will be a Gusty in front of a star core.

Head down into the lower levels of the building. Navigate around some meteor decorations until you find a hallway.

This star core is on a console that overlooks one of the alien shootout scenes in the ride.

Located at the ride control console at the end of the ride.

Head through the employees only door and walk up two flights of concrete steps to a red console overlooking the ride.

Open the metal door in that room to find another star core.

Look for a relatively empty area beneath a giant planet. The star core is located on a corner console next to a blocked door.

Located in the Nuka-World junkyard located on the west side of your map. The star core is on the second floor of a nearby barn.

Located at the Nuka-Market on Shelbie's stand.

Located in the Nuka-Cola bottling plant. Look for it on the floor after you pass the large nuclear generator.

Located in the Nuka-Cade. Head straight to the back and make a right. Walk through the employees only door and look for a star core on a weapons workbench.