As one of the OG fans of this game on Kongregate back when episode 1 just came out, I have to say, I am so happy this game got an overhaul and came to steam. This has got to be one of my favourite puzzle games of all time for two reasons.

One, the theme. It's hard to find good hacking puzzle games nowadays, and while I don't quite believe MU beats hacknet (yet anyway) it's definitely second on the list of them. The game doesn't rely on too much hacking knowledge, but it's just enough to reward those with it a little.

Two, the difficulty. A lot of these type of puzzle games are either far too difficult, or much too easy. MU, in my opinion, falls almost perfectly into the space between the two. It's not afraid to punch you with a challenge, but at the same time it feels set up so the answer isn't found farther than the top of google search results. That, and if it makes you do something difficult, it doesn't stack another challenge on top of that, it just ends. This way you either get something that is very difficult but that's it and you progress, or you have to piece together a few easier challenges to get past. This really encourages you to give it your all when working on a puzzle, and to not type hint unless your face is right up against the wall.

TL;DR If you like hacking games that aren't afraid to be difficult and are great at balancing challenge and reward, look no further.