Maybe it's a sign that I've pre-ordered too much or backed too many Kickstarters, but I'm finding that by the time I receive most of them, I'm not even interested in playing them.
For me, that depends upon the definition of "received" - as most of the ones I back include preview PDF, final PDF, and physical books, each arriving at a different time. If it's the preview PDF as "received", then never. If the final PDF arriving is "received", then 3 of 12 (but I without intending to play 2 of those 3), and if only the physical is "received", then 5...
The ones burned out on before arrival of final PDF: TOR 2E, Space Aces, Are You Mental; before dead tree add THe Fantasy Trip 2E and Torchbearer. In the cases of Space Aces and Are You Mental, I bought with no intent to play, anyway - more curiosity. TOR2E and TFT2, I knew from the PDFs I didn't like the rules changes. TB: first game from BWHQ I didn't like.
I did try the solo for Space Aces... not bad, worth at least what I paid.
T5 I back to grab ideas on, not to run in itself. And I have enjoyed the theorycrafting based upon it.
The ones I'm looking forward to running again SG-1, T2K 4E, Sentinel Comics. If I can find the right player mix, Vaesen.
I've yet to , but want to, run Bladerunner, Ironsworn Starforged, and Once More Into the Void.