Quoted from Kingpin22:Is Pinball Arcade still releasing games?
Development on new pinball titles seems to have stalled. Even though they don't have the Bally/Williams license, there are plenty of decent Gottlieb tables left.
All the facebook post comments and discussion threads I've seen on their forums have people begging for new tables.
I suspect the combination of a couple of key staff leaving/retiring followed by the loss of the Bally/Williams license kind of took the wind out of their sails.
Quoted from VALIS666:They've been working on a bowling game the last year or so and it just released last month.
They released that previously a few years ago, but judging from the screenshots, there have been a few additions to it since then.