Wow, has it seriously been that long since someone posted here? I thought we had a dedicated pinball thread too, but only found this one. I'll assume it's relevant!
Anyway, Zaccaria pinball has been released by ASK. I guess they were a huge maker from Italy back in the day? Apparently their machines are quite rare in America so it's a pretty interesting set of tables. $1 gets you one table with 2 others available, and they'll slowly be adding more tables for a total of 27. Tables are $2 each, or you can buy a membership for $30 which gives you everything as they come out, they say it'll be more expensive as time goes by but who knows.
Unfortunately, the physics are pretty shit and don't even come close to Pinball Arcade. I bought the membership anyway, mainly as just a way to look into these obscure machines. I like the old-style simple pins, so if you're a bigger fan of the newer ones with multiple objectives and game-like presentations, you should probably stay away.