This game remind me of Limbo it is short like Limbo or it's longer ?

Limbo is a totally different experience imo. NightSky is more about physic puzzles and less about atmosphere.

Can't remember exactly on the length of the game, though. But it is 5 hours at most.

Don't forget that you can replay the levels on a higher difficulty. And the more difficult versions of the levels aren't as stupidly difficult as in Super Meat Boy, which makes them more playable.

And I actually think that it's appropriate to compare it to Limbo. Even though the puzzles are more prominent, NightSky is still quite atmospheric.

Why does the length matter? I would rather have 5 awesome hours of good entertainment rather than 12 hours of kind-of-okay entertainment. I thought this game has very good length, any longer and it would become an repepetive grind like Snapshot is. More isn't always better, quality over quantity.

This game is really very cool and you can try and re try every elvel without be bored. And it costs only 1.99€ !

5 hours at most???
You must be crazy
I beat normal and 7/11 on alternative and I have 8 hours game play already.

dude, you need 10-11 hours to complete this game both on normal and hard...

It is funny the poster claims it can only complete in one night but in reality he only plays the game for 0.7 hours. what a troll!!!!

Achivements would be nice, though I understand why not every single game has them.

Still steam acheivements should be a requirement to some extent. If I have to use drm (steam) there should at least be some advantage to it.

Honestly, what a stupid game: the controls are completely inaccurate and the concept is just annoying. Good riddance!