As stated by others this is not a game, even Doshima (developer of this thing) says it but only once you actually download it and start it:
If it wasn't called all the time "Ren'py Port" before downloaded and if it was just an extra gallery mod, then I would probably rate it higher, but the way it's called force me to rate it as such, and as a Ren'py Port it's just a lie, horribly made, it's not a game, it's not a visual novel, it's not a kinetic novel... it's a not really nicely organized gallery mod.
It's just a gallery or scenes (with text, not just the scenes) to select and put in the menu in no particular logical order that allows you to enjoy them in order. In fact, if you want at least play them in order the developer made a TXT file to tell you the chronological order of the scenes, he didn't even took the time to put them together that way in the "port" itself.
If it wasn't called all the time "Ren'py Port" before downloaded and if it was just an extra gallery mod, then I would probably rate it higher, but the way it's called force me to rate it as such, and as a Ren'py Port it's just a lie, horribly made, it's not a game, it's not a visual novel, it's not a kinetic novel... it's a not really nicely organized gallery mod.