At the end of the game , you'll feel it's like a promotional game to promote the book , yet the game is still promising.

User Rating: 6.5 | Nikopol: Secrets of the Immortals PC
The good:

+Nice cutscenes that uses comic-style transitions

+Good voice acting.Interactions usually has more than one dialogue and contain good advice.

+Good and attractive graphics

+Simple and realiable item menu

+Challenging puzzles.Ranges from simple to VERY challenging.As usual,you'll have to use logical thinking,analytical skills(to dig info from books),trial and error puzzles and others.At some point you'll meet a pattern puzzle which can easily extinguish your spirit to not use the walkthrough,but it is very manageable because there is more than one way of doing the puzzles(including the brick puzzle).

+Attractive theme.You're set in futuristic time , controlled by totalitarianism government(no suprise there)

+A you-can-die puzzle game , yet the game does not frustate you at all for failing , instead , offer advice on what you're supposed to do(or not do) , after you died of course.You're automaticcaly loaded to your previous scene before you died,so you don't have to be a worry-wart and save every 1.5minutes

+Aside from solving puzzles,you'll be using guns(but just aiming the cursor and taking the shot,then you're discard the gun) and moving at the right time(as some AI will automatically move from one spot to another,you'll have to time your move)

The bad:

+Tooooooooooo SHORT.This is the biggest letdown.The game is just as I described,it's like a marketing device to promote the book by Enki Bilal,the game is based on.There's also the movie,based from the book.

+Not explanation of the whole story.Since the game is based on a book,probably the devs assumed there's no need to, which is dissapointing.Still,is the story presented in the game satisfying,yes.It's like 1 small episode from the book to me.

+Cursor's is not consinstenly HELPFUL.As usual,the cursor changes shape based on action you can do . Move,interact,normal.The problem is that the interaction shape will only APPEAR when you equip the RIGHT item.This problem got me stuck in a level , as I wonder round and round , looking for solutions.

The biggest problem with the game is that it's too short , with or without relying on walkthrough . Everything else is pretty nice , tho the story could use abit more explanation to be memorable.Is it worth it ? Rent or borrow from a friend .