My wife and I have spent the last year and a half making a tabletop shmup called Inglorious Space (hopefully this still falls in the "development" forum. If not, sorry and feel free to move it).
It's a semi-cooperative game for 1-4 players (yes, there's a solo score attack mode) with lots of fun nods to older shmups like Galaga, R-Type, Thunder Force, Star Soldier, etc. You need the other players to help you survive to the end, but you're also trying to get a higher score than them which results in a lot of backstabbing as the game progresses.
Each character has a unique ability that sets them apart from the other players and the enemy spawning rules make each playthrough unique. We're trying to get a small print run funded on kickstarter right now. Check out our quick stop motion pitch video or, if you want more mechanical details, watch the How to Play video on the kickstarter page.
Kickstarter Link: https://www.kickstarter.com/projects/bl ... ious-space

We just got back from showing it off at GameStorm and we're really excited about it!