The game would be a prologue to a bigger, multiplayer game where you play as small humanoids on little planets, developing and eventually travelling space, other than nonn sentient critters, the only NPC's are robots of ancient technology wich is far more advanced than player created technology, fragile and inreplicable. So each player represents a political influence of the speices, the creatures can be directly controlled both platformer and RTS style, but when unfocused they will return to their normal business, building private property, breeding, etc. Each humanoid has a personality so they cope with some and fight others, so when two players merges their land, union, colony/whatever thye choosed to label their political structure, some of them would be racistic and fight each other, making the player have to keep up the peace within, when someone in an alliance teamkills, they are broken off the structure, making a structure of their own. Also when all heads of a polstruct are killed/captured all citizens of the loosing polstruct will assimilate and become part of of the winning polstruct. Beaten players can exploit internal conflicts to create a new polstruct from anothers, such as if you destroy a republic and assimilate citizens into your communist regime, another could exploit the political disagreements and make a new polstruct, essentially putting them back into the game. Other than destroying each other, you design technology, explore and colonise. Everything would be physical objects wich can be constrained, so you could for example launch a captured cofee mill into space with fart driven rockets. When a civilisation dies, it will still stay on the list, so one can join as the last member of say, the green was wiped out by red's fusion bomb, or a rogue precursor robot, you join, you see a beaten up planet, possibly inhabitable, lots of debris flowing around in orbit and the place is infested by wild shoggoths, as a last attempt to save the greenkind, another green dug down a precursor artifact, the Shoggoth Domesticator, wich you can then power up to domesticate the shoggoths, then you insert greenkin DNA into a shoggoth, making it grow greenkins, tadaa, race restored.