FSX/P3D. But in order to get it, you need to sign up for the SSW website which had a glitch so I could not. They are not making the price available nor can you see the shop page till this is done which I think is stupid. So perhaps one of you good lads can log in and tell us what the price is or if its free or what... The rest of the information can be found via the source link. Thanks to ADX reader Florian Hempel for the tipoff. And yes, TAC PAC.
ADX Update: Looks to be about 40 Euro.