"Make a game based on the title of any talk scheduled for GDC (http://schedule.gdconf.com/)."
Several other people have already done this by now..
It's a gardening game.

This is a semi-sequel to SquarePusher by anne laplantine. A few of the mechanics have been simplified or altered so as to more closely resemble similar ones in increpare's English Country Tune.

Controls:
R - restart puzzle.
Arrows - move yourself.
Esc - exit.

In this game, all of the levels are in easily editable text files. The symbols are as follows:

# - walls. These determine the scale of the viewport when you play the level.
@ - you. You can have multiples of yourself.
> - exit. All of them must be covered by yourself to win.
, - white tile. Plant on all of them to win.
. - check tile.
+ - weed.
O - egg. All of these must be in a basket to win.
X - basket.

Feel free to play the levels in any order.

Keep awake by avoiding Unicorns, and maybe yourself.

Gardening doesn't get much more fun than this! Watch grass grow, and water spread! Also control a ladybird by clicking and eat/drink grass/water!

All this for absolutely free!

Controls: click with a mouse to move a ladybird!!!!!!