I can’t claim to have comprehensive knowledge of all kinds of pre-existing puzzles, but Squirrelativity seems unique enough to be really interesting..

Made for Ludlum Dare 52, it’s a free game with only 15 levels, but they’ll have you mystified long before you reach the end.

One team of squirrels has a tree growing up from the bottom of the board, the other has a tree growing down from the top. How it grows, though, depends on how you draw their branches. The bottom tree’s branches can only go up, and the upper tree’s branches can only go down. Each set of squirrels can only broach their own branches.

In the middle of each board there are a number of green seeds. A color of fruit will grow out of the seed, depending on which tree touches it. However, each squirrel’s tree makes the fruit that the squirrels of the other tree likes. It also drops down according to that tree’s gravity. That is: the blue squirrels’ tree grows up, and produces red fruit that drop down, and the red squirrels’ tree grows down, and produces blue fruit that drops up. Got it?

The screenshot I took demonstrates how the fruit falls. Neither tree can grow branches through a space containing a branch from the other tree, and each level can only end if you both get all the seeds, and each team of squirrels get the same number of fruit as the other. The delicate balance of squirrel power must not be overturned!

Squrrelativity, by cassowary (itch.io, $0)

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