A nitpick - but I really don't like the title. 'Labyrinthica: The Quest of Lima' ... is not catchy or punchy. For starters, it's in passive voice ('Lima's Quest' would be better than 'The Quest for Lima'). I would throw out everything after the colon - 'Labyrinthica' is good. All the other stuff is superfluous and dulls the impact.
Who is your target audience, anyway?
Your explanation of the game above makes me want to play it. The updated version on the website is better than what it was, but still not great. The wording is ugly (am I correct in thinking you're not a native English speaker...?), and there are too many comparisons to games I haven't played. Rather than saying that the controls are like Abuse, say that 'aiming is done with the mouse' or something. 'Like Abuse' isn't a description to people who haven't played Abuse, and I only did that a week or two ago.
The problem with the wording is that it isn't punchy at all.
Labyrinthica: The Quest of Lima, is a single player, melee focused action game
This is a good sentence that tells me stuff quickly, without waffling.
(Well, you should remove the first comma - it's killing the flow of the sentence)
The monsters in Labyrinthica are strange and interesting, like the Drabee, which is a dragon bee. Or a Shruby, a walking shrub.
This is lame. 'strange and interesting' aren't interesting descriptions. Explaining that a 'Drabee' is a dragon bee is a little bit cringeworthy.
How about something like 'The monsters of Labyrinthica are bizarre and whimsical. You'll encounter violent shubbery, fire-breathing bees, and <something else - rule of threes demands it>.'? Even if those aren't the best descriptions for your monsters, it's a stronger sentence structure.
Also, mention your potions system. It sounds cool.