The Pinball FX 2 Core Collection Add-on for Pinball FX2 has 4 achievements worth 40 gamerscore.
Launch a probe and get it to the right spot on Secrets of the Deep! (Single player only)
Complete two successful shots against the galleon during Mock Warfare on Rome! (Single player only)
Amass your first million with the Mad Professor watching on Biolab. (Single player only)
Hit all of the guardians of the hidden mini-playfield on Pasha! (Single player only)