Bad Piggies 2 is a cancelled sequel to the well-known Angry Birds spin-off game, Bad Piggies. The original game was released on September 27, 2012, a puzzle game where you construct vehicles to get to the end of the course. The sequel was discovered in late 2020 on an ArtStation post of a former Rovio Entertainment employee. It is unrelated to the sequel that was soft-launched.
The game likely would have take place in space and features the player building spaceships, judging by the images revealed. It's even possible that the game would have been set at the same time as Angry Birds Space, another Angry Birds game taking place in space.