Very nice. I really enjoyed it! It's miles better than the average shit posted on Kongregate. Just a few comments:
1) If you ask the Arbiter for clarification concerning "the Great Thinker Socrates completed the task", he will mention that "Socrates came to the current Arbiter." I think it's supposed to be "the original Arbiter" or "the Arbiter of that time"...the "current Arbiter" is the one you're talking to right now!'
2) It would've been more elegant if you had to use all the ideas the philosophers give you during the final argument against the Arbiter, rather than two of them serving just a red herring. The "Help a dying man" could easily be worked as an example of how trying to save someone is still a noble and heroic effort even if you don't succeed. I'm not sure what to do with "People Work Together" but I believe it could be incorporated somehow.
3) In the same vein, it would've been nice if you used the "Your Face is Ugly." Perhaps to unmask the Arbiter?
1) First, it's not indicated it's a demo. And because the demo is too long, I'm reluctant in playing the full version and repeating 3/5 of the game. Paradoxal, isn't it?
2) The game isn't very polished. There's no animation for the flute, so it's shown as a random instrument. Awkward. I also understood the logic behind the glyphs on the pieces, but it doesn't match perfectly sometimes.
3) Interface issue. You should be able to toggle which instruments to play, otherwise it becomes too difficult to analyse the less prominent background instruments.
4) Tutorial. It didn't take me much time to figure out how the game worked, yet the tutorial insisted on holding my hand like I was some sort of retarded baboon. At least let me skip it.
Besides these issues, the puzzles were very interesting. I don't even know why you put the boring hidden objects aspect; the puzzles are creative enough and hold sufficient appeal to BE the entire game.
Very well done; the pictures chosen have subtle clues to helps solving the puzzle. The game could use a better user interface, different music for variety and border highlighting, but overall an interesting game!
You should add a redo/time rewind function. It's annoying when you know how to solve the puzzle but have to redo everything because you accidentally fell from a platform.
Very nice, I like the four colour theorem! Just two complaints: there should be a reset button to quickly clean the level, and a par indicator to show the minimum amount of colours needed.
Complete failure. To begin with, the hints are not even that clever, most are actually just annoying. Besides, many design decisions were poor. For instance, have you ever thought that not everyone has administrator rights to change the clock? Or that laptops don't have the light for the CAPS lock key? Also, the usage of hardware is catastrophic (in the sense that it renders the game unplayable): in level 19, the game does not recognize my webcam, yet the mouse solution doesn't work either. Essentially, this is a game with a fairly nice idea that wanted to be clever unconventional but failed miserably. Oh, and I suppose I gave spoilers. Whatever.
Wow, amazing, really fantastic. But it was a bit disappointing that the stone heads mystery was not fully solved in the end; do you plan on doing a sequel or something?
This idea is quite overdone, and this game doesn't add anything unique to it. Oh, and congratulations on ignoring the fact that Earth is non-Euclidean. I don't need to travel the entire world to go from a point in the west of the Pacific Ocean to another close point in the east of the same ocean.
A somewhat good concept, but poorly executed. The huge amount of grinding in this game is simply monotonous and, I daresay, unacceptable for a single-player game. The quests are completely uncreative, being solely about "kill X units Y in Z". The interface could be slightly improved, and the graphics are uninspiring, to say the least. However, I must say I had fun with the concept of the game, so I rate it as a mere "passable".