Nioh 2 is a very good soulslike in the same vein as the first, but it lacks innovation.

From a gameplay point of view, this game is very similar to the first, in terms of the weapons available, spells and skill trees. The enemies are different, however, and like the first, they're pretty well designed, despite some bosses making questionable design choices. The level design is really very good for a soulslike game, with elements to find that encourage exploration as well as shortcuts. The side missions are unfortunately lacking in interest, involving either exploration in previously visited areas or boss fights, which can be interesting.

Visually, the game is also similar to the first, for a soulslike game. It's very legible in terms of attacks and enemy paterns, though it does suffer from occasional camera problems that can be frustrating. The character designs are very good and easy to read.

From a story point of view, it's rather messy and lacks interest, even though this isn't supposed to be the main attraction of this type of game.

In conclusion, the game is interesting for the genre it covers, the mechanics and bosses are solid and complex, and it has a fairly long lifespan.