Has GMG done this to stop the sharing that used to happen or is it temporary?
There's a universal 15% off code - IFDSUM-MERSAL-E15OFF
And they've been pretty consistently doing 25% off codes for new releases. But as most of us here are looking to spend Playfire rewards, most of the codes haven't worked with them, which is somewhat disappointing. Personally, I don't have a problem with not being able to use both, the Playfire system is pretty insanely generous as it is. I used my 25% off code on the XCOM collection without credit because it was worth saving $5 to me and I'll just use my credit on something else later.