Planetfall
Planetfall is a series of question sets head-edited by Eric Mukherjee and written by members of the University School of Nashville's quizbowl team. The set is notable for its high quality and for it's attempt to incentivize the use of MODAQ for the collection of advanced stats (which earns a discount on the mirror fees). The set's name is not, in fact, a reference to the Infocom or Paradox games of that title.
Planetfall
The first iteration of Planetfall was mirrored in the 2023-4 season. The questions were regular difficulty, though longer than typical regular difficulty fare. Results can be found here.
Satellite: Planetfall Jr (Planetfall II)
The second iteration of Planetfall was mirrored in the 2024-5 season, and was written at regular-minus difficult with shorter (<450 character) tossups. Results can be found here.
Planetfall III: Birds in Space
The third iteration of Planetfall will be mirrored in the 2025-6 season, and is being written at ACF fall difficulty, with both college and high school mirrors available.