When will the Parasites Expansion be infecting mac customers

I really wanna play around with parasites, any window of time before I can?

It’s available already, check out the buy page here:

store.esellerate.net/s.asp?s=STR … 5734816146

Will the parasites and outcasts DLC be made available for Mac on Steam? I purchased the parasites DLC there without realizing that it was only available for Windows and I’m really looking forward to using them.