The buggy "Vampire: The Masquerade -- Bloodlines" release, which sold poorly.
https://www.geek.com/games/11-games-that-killed-the-companies-that-made-them-1721057/
Will this be the game that kills the Fallout franchise for Bethesda? Time for a re-think I'd say. Maybe they need to license it out while it's still worth something.
Interesting design. I can speculate they're trying to build a helicopter that fixes the lift dissymmetry during forward flight. I guess they would have asymmetrical thrust through the side openings to correct for torque. It wouldn't surprise me if others had tried this before.