Let's hear some more ideas for games

This what we got so far (if you post an idea for a game that depends on an unknown factor, make sure you state the condition. And try to think of contests that we could have more than once ("first" of something is hard to prove and not repeatable)
1) screenshots:
This will be quite unique in this game because you have a whole world as your photo studio. It's like having a 3D canvas which at any point you can turn into a 2D image for submission.
2) Top Designs:
based solely on aesthetics, which designs simply look best. these include:
A) creature - This could be based on categories also such as Herbivore, Carnivore, Aerial, Aquatic, Land, or mixtures of these categories.
B) microbe - Same as creature, but with microbes.
C) vehicle - same as creature but with vehicles, could include categories such as land, air, sea, sub, space, amphibian, etc.
D) city - (based on size categories, undersea/land etc.)
3) Predator Chaos:
design a predator that will face off against a huge load of other predators till only one remains standing. This of course depends entirely on currently unknown factors. These being 1) will we be able to isolate worlds to be free from pollinization (therefore only allowing downloaded creatures to enter) and 2) will creatures fight other creatures on their own without a player commanding them to do so. We can hope. Also, this contest might require (or at least benefit from) the creator recording and hosting a vid capture of the fight/fights
4) Targeted Creations:
design something modelled after an out-of-game source such as a dragon, specific city, specific building or vehicle, etc.