The Signal State

I would give this game a 7 out of 10.
I have been using this game as a way to get my brain working again in preparation for learning new stuff and finding a new job in tech after quitting my existing one. It is intriguing and mildly challenging for someone coming from a software, hardware, DSP and algorithms background.
I definitely believe it makes for a good brain exercise and I'd love to see how it fares in the mind of engineers, junior, senior or just total hobbyists.
Having said that, I think the game is too short and the computation model presented in the game isn't interesting enough for making a sandbox so there's very little overall value (get it on a sale).
On top of that, the story is forced and doesn't blend well with the puzzles. There was an attempt at mimicking TS-100, SpaceChem and others in that regard and it wasn't done as well.
I also think the scoring scheme, trying to minimize the length of the cables or the module count is not very intriguing. Again, the computation model is just too bland and weak -- it doesn't behave like a real world electronic circuit as synchronization is implicit and signals take computation to propagate.
Nonetheless, the developers had the right mindset making this game and I'm looking forward to them making similar albeit more intriguing puzzle games in the future.

This is SHENZHEN I/O but worse. That said, it's fine. It does what it sets out to be competently, but it borrows far too heavily from SHENZHEN I/O to avoid comparisons, and it does very poorly in such a comparison. Weaker story, weaker characters and dialog, shallower puzzles, the puzzles noticeably do not fit their themes near as well, and the difficulty ramp is far weaker.
It makes it a little difficult to imagine a person to recommend this to. If you like Zachlikes, play SHENZHEN I/O instead, if you don't like Zachlikes, you won't like this game. If you've already played SHENZHEN I/O, you'll probably find this one easy and somewhat tedious.
I suppose it's alright as a first game in the genre, but still inferior the bigger names in the genre. I suppose if you really like the idea of SHENZHEN I/O, but found it far too difficult, this might be up your alley.
It's unfortunate, if this was a bit more unique, there would likely be more to recommend here, but it's placed itself securely in a shadow gameplay wise, and the story is on the weak side, which would have been its one chance to stand out.
6.5/10

(Обзор на русском > тут <)
A puzzle game about programming by combining analog modules. 29 required and 12 optional levels.
+ It feels very tactile to move and connect modules.
+ Levels introduce new modules and increase task complexity.
+ Some levels require to think, but never stuck.
+ In-game multistep help.
+ Sandbox with more modules.
+ Achievement-friendly: you can earn all achievements after completing the campaign.
= Community puzzles — if you want more.
= ~7 hours of gameplay.
– The story is not why you will play this game.
If you like to play some non-hard game about programming, it's here. Don't be afraid, it looks much more complex than it is.

One of the lesser Zach-likes available, but still worth a playthrough. Could really use better documentation.

Neat little game about signal processing with no frills and especially entertaining in sandbox mode, even if that doesn't attract me personally.
The puzzles go from very easy to absolutely insane quite frequently. In fact, you might want to skip the optional ones until you want to spend a lot of time on them. It definately would have benefitted from more puzzles that ramp up the difficulty.
However, anything outside the pure puzzle gameplay is barebones. Music is inspired but by the third listen you just turn it off. And the campaign, the campaign is... obnoxious. The premise might sound interesting but they fail to produce anything beyond a high-school level short story in which your contribution comes down to following orders. Meh. Might have been better to have no narrative at all and just focus on tutorializing.
A lukewarm recomendation

It's a puzzle game similar to those from Zachtronics, with it's own gimmick of wire-based modules. I found it pretty engaging, even if some of the puzzles felt a tad too obtuse with their demands.

it's a nice puzzle game, but the modular gear is mostly a gimmick - might as well just be logic gates. I know that this is what modular boils down to anyway, but I hoped for some more variety in terms of more "musical" modules that would just be repurposed.