What Do These Games Have In Common?

Paranoia
Numenera
The Strange
the Apocalypse Engine games
Delta Green
13th Age
Shadow of the Demon Lord
The One Ring
Cyberpunk 2020
Trail of Cthulhu
?

Answer:

All of them produced charity pdf bundles for Bundle of Holding, and all of them officially did worse than the new Bundle of Lamentations--which has now officially raised more money than any other previous Bundle of Holding.

As of this writing you have 3 days, 1 hour, 24 minutes and 41 seconds to get one.