With "A Small World" as the theme I had a number of options to go with and a number of interpretations that could fit

• I could go with the puzzle island I had bouncing around inside my head when voting for themes, the island being a world unto itself.
• I could go with trying to manipulate the gravity inside UE4 to let me have a very small spherical world with different biomes. Don't know how exactly I could make that mechanically a game. Maybe setting up towers to shoot incoming asteroids.
• I could go with a 4D Hypercube game, because it's self contained and there's no escape it would be a world unto itself. Each of the 8 rooms could be a different biome to make that even more apparent. You're goal is to escape the hypercube.
• I could go with a "tribute" ((copy)) of the CS map rats. This would however mean I have to deal with multiplayer and modeling SMG, pistol, sniper rifle, shotgun, grenade, smoke, flash, knife and everything else that makes an FPS interesting. This fits well with the small, but not necessarily the "world", at least not as well as everything else. Sure the area would be the world of the game, but it's a loose fit to say the least. Also I would have to work with multiplayer and networking, something I haven't done in UE4 yet. It would be fun though.
• It could take place in a puddle as a bacteria and you're just trying to survive for as long as possible in this puddle. Seems kind of boring, however. There could be a level of evolution and cell mod's going on and some antagonistic cells but I don't see how I could really make it interesting.
• There could be a terrarium builder game. You try to construct a small world inside a glass bottle that survives for as long as possible.
• There could be a game about communication, trying to make communication easier to make the world as a whole "smaller". That's a pretty liberal interpretation of the theme but it's something.

I think the two I like the most are the 4D Hypercube and the FPS. But the Hypercube is more possible and fits the theme better than the FPS, sot that's what I'll be going for.