Some puzzles are really great, most are stupidly far-fetched or flat-out nonsensical. Additionally, the hint system often only tells you how to start a puzzle rather than solve it, which is completely pointless.
Also the poor performance and high gigabyte requirement for what amounts to a short and kind of ugly escape room makes me think this might be a bitcoin miner of some kind. There's better escape room-type games out there in any case, so don't waste your time with this one unless you really love the genre and need more immediately, I suppose.