Anything you can think of right off the top of your head, the first thing that comes to mind. Go! Go! Go!

Treasure hunt, with incomplete pirate map. Yarr!

Ideas are a dime a dozen. Implementation is the killer that separates the men from the boyz.

Thats one problem, theres a few people here that could probably out implement me and since I have other things to do before them, they'd get it out sooner

At the very least I'm not that naive. I don't expect my ideas to be worth much of anything, I just don't want the ideas to be stolen. I'd prefer someone come to them individually.

A welder??? Rly?

An RPG that starts off in 2D black-and-white. As you wander around, you "learn" about greyscale, and you are able to now see in greyscale. Then you learn about color (or maybe one color at a time) and you can now see in color. Then you learn about "3D" and the world is now available in 3D. As you learn new things, you can apply them; if you skip any stages, your game would certainly be more interesting: Learning 3D before greyscale (which of course comes before color), and your entire 3D world is black-and-white only (no shades of grey).

http://www.speedhack.allegro.cc/rule-o-matic/spin

There was this ancient Russian game with ("democrats" and "communists"?? anyway they looked like) blobby frog things hopping over leaves. I assumed it was a well known game-concept, but I haven't found it anywhere. The jig was this:

• You started at the bottom-left

• You had to go to the top-right

• The field was divided in a (increasingly denser) grid of "leaves"

• A leave has a (grid) position, size and shrink-rate

• A leaf with size 0 disappears

• Leaves randomly reappear

• Standing on a leaf would make it randomly (but thereafter consistently) shrink at a faster rate

• int life = 5; if(player == standing on a disappearing leaf) life--;

• At higher levels one or more enemies appear

• Enemies have the same restrictions as a player and can die

• Some bonus-items to get more points, often placed "at the start of the level", so getting them was a challenge each time. There was a particular bonus that could spawn an enemy. Most notably this bonus would appear after the death of an enemy

• Maybe there was also a time bonus...

(As the grid got denser the leaves got smaller, but more common, increasingly making an appeal to your speed, instead of puzzling)

A game I (very sexistly) thought of (intended for women of the female kind):
There are four light/colour-sources in the corners of a square. They change rhytmically and predictably. A colour is given in the center. You get points for getting a colour from the field as close as possible to the "center colour". (And perhaps penalties.) But more importantly you get a particle effect depending on what you did (necessity to get women to play...)

Now from the top of my head: Tanks on cubes that fall out of the sky 3D battle. Different drop rates == fun.

Your just taking ideas from Wizball and De Blob and clagging them together.

An FPS where all the combat takes place in freefall.

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Is the implementation what really matters, ideas are not really important.

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Awesome! I loved that game.