The Fallen God Add-on for SpellForce III Reforced has 7 achievements worth 238 gamerscore.
Beat the Fallen God campaign on Circle Mage difficulty.
Use a Potion of Fresh Start.
Craft 50 items.
Collect all Hybernian Writings.
Finish the Fallen God campaign with the tribe.
Finish the Fallen God campaign without the tribe.
Solve the mosaic puzzle.