This is not a full game, it is an incomplete demo.
The level cap is effectively 15, as past that point the highest level enemies (lvl 9) stop giving you exp.
The Spider Elite boss may be able to give exp, but even max levelled, it is impossible to solo, and there are not enough players to take it on with a full party.
(so much for the Prestige mechanic apparently available at Lvl 20)
some areas can be seen but are completely inaccessible, there are only two accessible areas.
one quest is bugged (the lonesome wanderer part 2)
The platforming mechanics are present, but very poorly implemented.
the ladders make you slide around like they're greased.
Two popup windows are default bound to 'Q' and 'E', meaning they will regularly be accidentally opened during combat movement,
these popup windows when open, prevent other inputs from registering without pausing the gameplay, leading to uneccesary character death.
all in all, a basic Maplestory clone. shows promise, but could use a lot more work.
So far, it's an alright way to waste some time.