https://mirrordropgame.com/
https://store.steampowered.com/app/845270/Mirror_Drop/
https://ianlilleyt.itch.io/mirror-drop
You're going to see the trailer and screenshots of Mirror Drop and have no idea what the gameplay is like. It's actually pretty simple to explain: it's a Sokoban-style puzzler but set in 3D non-Euclidean spaces. Every stage drops you into a new disorienting space, and you have to manipulate an orb by activating/deactivating surfaces that push/pull the orb around the space. It starts off simply, but quickly begins introducing new elements and ramping up the scale and scope of its environments. Both visually and mechanics-wise, it's constant reorientation, as you experiment and figure out how a new level works and how the rules have been influenced, the reflections and architecture creating gorgeous kaleidoscopic displays.
Mirror Drop is a psychedelic 3D puzzle game where you maneuver a reflective sphere in a world full of mirrors, over-saturated colors, and infinities. Each level contains three puzzles and a hidden exit, set against 100% raytraced alien geometry
Bennett Foddy of Getting Over It and QWOP fame wrote about the game on his blog
http://thatsnot.fun/mirror-drop/
The puzzle mechanic in Mirror Drop is essentially a very simple gravity-switching design, which should be familiar if you've played Kory Heath's Blockhouse or any of the innumerable similar games out there. In each level, you activate three artifacts and then leave. But here that basic puzzle mechanic isn't the point — it's more of a foundation on which to build fascinating — and ultimately fiendish — spatial puzzles, in the same way that Miegakure builds an interesting puzzle about 4-Dimensional space on basic Sokoban mechanics.
In case it's not clear by now, one of the things I most like about videogames is that they can have original 'brainfeel'. Each of the levels in Mirror Drop starts with you feeling totally disoriented, then reconstructing an impossible geometry by floating around it and manipulating an object inside of it. Sometimes you find yourself in spaces where you can turn all the way around without turning 360°. Sometimes you find yourself in spaces that are inside of themselves. And your brain says: 'alright'. That is a wonderful feeling.