Stacker

I'd never used Silverlight, but it runs well despite requiring a quick install. Physics engine was had a very good 'feel' ... game was challenging but achievable. I think there need to be some other element introduced to make it a bit more 'stressful' ie a block number limitation, or a countdown to an earthquake. Other contestants also made physics based tower building games, but it's not a classic genre of game, so I'd say it's slightly more innovative than the norm. No sound ?

Well, you are next! Another game that's basically just a sample for a physics package. Disappointing indeed. It's actually sort of fascinating and I kept going to about level 6, but if you really try to win, it's trivial, since you are allowed to put the blocks anywhere (why didn't you limit it to above the line?). But no, just a physics sandbox with a win condition, and this one even only has one shape and one action. At least the others implemented grabby-hands (on the other hand, the simpler interface is more fun).

I also have no Silverlight...

Having to install silverlight was annoying. OK physics stacking toy, but pretty boring as a game.

Was fun at first, but the increase in difficulty was a little too gradual. At level 8 I got a bit bored, spamming blocks,
and at 89 blocks the game crashed and my browser stopped working :)
Graphics are very simple.

There was also quite a bit of random flickering in the text messages.

I like the idea in general, but I think it is way too easy. I lost interest already after the first level.

I think a huge improvement would be to let each level have a set of shapes that you had to stack to get above the line. That way each level would be different, and difficulty could easily be scaled simply by adjusting the amount of pieces available. (..i just realized Endurion already proposed this)

With different shapes it could be more of a challenge. As it is you just keep popping out blocks carefully and end up winning :)

Having to install silverlight was annoying. Plain vanilla stack the cubes isn't really enough. It needs something else to make it interesting. A physics sandbox doesn't make a fun game by itself.

*off to uninstall silverlight now*

Don't have Silverlight, might try later.