Great Permutator

Balls as blocks hard puzzler with great "Ahaa!" moments and personal reward. If you like games like SpaceChem, then you'll probably like this one too. The idea and presentation is simple, but the means to achieve Point A to Point B will get your mind melting. 8/10

Great game!

Fiendish , compelling and wonderfully realized puzzle game. There are some truly challenging problems to tackle here. A number of times I had to walk away from the game for a week or so to let my subconcious mind work on some of the harder puzzles and achievments. Finishing the game felt so good and nailing all 16 of the achievments provided one of the most sublime puzzle gaming moments I've had thus far. Currently it's under $2 to buy this gem so do yourself a favor and buy a copy already.

This is one of the most simple games by design and one of the most complex ones by thought. I really love this. At first I was shocked about the very outdated apperance, but it does no harm to the challanging fun.

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Brilliant!!! If you like maths, operations research, graph theory, network analysis, cellular automata, complex problem solving using intelligence you will love this game. It's amazing one of my favourite games!

Permutation !!

Factorio Little Brother. The difficulty is damn steep. Dont let my hours fool you, i played this game offline for a long time... And i am still on page one.

Easily one of those very hard difficulty puzzle games that i have played, with that 90's tone.

You call those 1~2 stars easy levels??? A big NO. Why not just make a game that can be solve first (with everything powerful machine unlocked with unlimited numbers), then just show up the star system to make us optimize them later? Why make a game that is already impossible within the first 10 levels??? In case if anyone might get the wrong idea abut puzzle games, let me make it clear here. Puzzle game are NOT meant to be HARD. That's digital muscle flex for the developer! Puzzle game meant to be FUN!!! Make it fun first, then make it hard later.