An ambitious port from browser to 3D, but it just doesn't cut it.
After a week of playing, players quickly reach a point where there is little to do other than log in, learn a skill/module and wait a few hours for that skill to complete. Taking from its browser game roots, there are very few active functions a player can do within the game. The mission system is about the only thing one can do in Celetania to pass time, and it seems almost like a separate minigame, affecting nothing in the game world and offering game currency - the one resource players tend to have a huge surplus of already - as a reward.
A new player jumping in finds himself far behind the curve of the existing players, who already have their defenses, armies, and gate manipulation systems built up. However, catching up seems like it may be possible, but that is only because there seems to be a handful of skills/items that players can train. After a few weeks, one has most of it trained already, leaving very little down the line of advancement opportunities at the end of the chain except to go back and train the modules that you didn't want in the first place.
While the game allows you to jump in and have fun quickly, many players may find that by the end of their trial there is a massive shift from doing/gaining to waiting/stagnating.
A great idea with some very notable features, but a poor game at its core.