The Lost on Mars Add-on for Far Cry 5 has 7 achievements worth 300 gamerscore.
Reboot the Terminal on top of the Control Center Antenna.
Perform 10 takedowns on Arachnids using the Power Glove.
Buy 12 weapons.
Hit 10 Arachnids with Crabmones.
Complete the game (Host Only).
Kill all the Queens (Host Only).
Collect all of Larry's notes (Host Only).