It's worth noting here, that I write this review based on the condition that Liminality is watched with full knowledge of the story in the 4 original games on Playstation 2 as well as the entirety of .hack//SIGN. .hack//Liminality is a very interesting addition to the .hack// lore because it is very largely based in the real world instead of the game The World. It elaborates on details that are alluded to but that the player may not really understand otherwise. Each episode has points of direct correlation to their accompanying games and it's not fair to leave them as a standalone object because they're simplynot meant to be. The details and events you are given add without conflict to the story and are just a very strong addition to the lore.

The art direction and sound for Liminality is perfectly suited to what a viewer would expect after .hack//SIGN and while playing the PS2 games. There's really little more to say on this end. The music is done by the same artists and continue to set the atmosphere along with the anime visuals.

The characters themselves may be the weakest point in the episodes, in that they may seem unusually trusting or somewhat cliche. While I do cut a couple points from the character score for these problems, I don't think it actually detracts from the episodes at all and actually ends up being one of the rare cases where a cliche actually works well.

As a lore addition, .hack//Liminality is without any real flaw, but I would not suggest watching it without thorough knowledge of the games because it will feel disjointed. As before, it was not really meant to be a standalone series.