It provides 100 hour long play-through but less than half of that is actually enjoyable. Game suffers greatly from poor game-design decisions that love to waste your time. I really wanted to like it, but it's just not happening. Let's hope the developers learn their lessons and will cut out the tedious mechanics in future titles.
This game gave me the FEEL that I will not forget. And that's saying something for a game that doesn't have a childhood-nostalgia value. It shows its brilliance by managing to immerse the player through quite simple game mechanics coupled with simple but superb presentation. Risk management is the name of the game. You will die and that is expected. But it will all come together once you achieve one of the greater endings. PS I don't own it on GOG, but I payed a bunch of this on android.