I watched this a few years ago. My take on it is that it's like 2 episodes of one of the best TV shows ever. I loved what was in the movie. I loved the style. The live action-CGI hybrid was quite unique. I always love creative stuff. But the movie felt like a second act or some middle part of something bigger. I'd love to see more but I doubt I'd get to see more.

There is also a game(https://en.wikipedia.org/wiki/Nikopol:Secrets_of_the_Immortals) and a graphic novel(https://en.wikipedia.org/wiki/The_Nikopol_Trilogy