Something is lacking severely lacking. Other reviews already mentioned that there is little in terms of optimization, rather you are trying to find the one correct solution. Judging by the histograms, a few puzzles seem to have 2-3 different approaches (i.e using the "signal grid" or not), but most of the time you're fighting with pipes trying to cram your solution in a limited space. This seems to be the main problem in most of the puzzles. And mocving pipes and elements around feels surprisingly clunky for a Zachtronics game. There is no story, unless the terms (borrowed from Hindu mythology) tell one if you understand the references better. Music and art are great as usual, but it doesn't save the game.

It kinda feels like a fangame, like someone inspired by Zachlikes tried to make their own, came up with arbitrary rules and then put a ton of polish on the product without nailing the core gameplay/optimization aspect.

I'm struggling to recommend this one. It's just not a fun engineering puzzle. There is an engineering puzzle in there somewhere, but it's mostly a case of arranging awkwardly connecting blocks in a very limited amount of space. I often find that with many such games I don't get stuck because I can't solve the engineering side, I get stuck because I run out of space and have to sit for an hour playing with a jigsaw puzzle. This game almost immediately got to that point before the logic of any of the puzzles began to stretch me.

There's nothing more frustrating than solving the logic of the puzzle but then having to find the one layout that actually lets you put that solution into use. It's not an open-ended puzzle when open-ended solutions just don't fit in the grid, and only the one solution that the designer intended does. This game gets you to that point before you've even barely moved out of the tutorial puzzles.

If you like arranging blocks, and you also like engineering puzzles (as I'm sure they get difficult eventually), go for it. If you're after the logic of a Zachlike puzzle like Opus Magnum, but bounced off Shenzhen I/O due to the limited space you're allowed to build your solution in, you really won't get on with this one. Personally I feel like the game would be a lot more fun with a larger grid.

It was a tough decision, but I'm going to say no to recommending this game. It's the first Zachtronics/Coincidence puzzle that I've genuinely disliked, and as the game sells itself as an engineering puzzle but is most definitely space-optimization first, I just can't recommend it.

What a wonderful game!