I don't know why I give this 10 stars game 9 stars.
Don't ask me.
Dear sixsixfive, now it is my turn to misunderstand: why do you say, that game-data is not free and open? Is not CC a free license? The only restriction is commercial use - but who cares? Use, modify and freely redistribute (don`t sell) game-data under the same license! Maybe you mean that the existence of license is restriction?
Game: And Yet It Moves
I have been waiting for for this since 2007
NO 64BIT BINARY....
Right, and I understand your anger, but per definition it isn't a open-source game. Of course, the engine is, but the game data is not and an engine without game data isn't a game...
The game engine is under GNU GPL, check it please and change the mark in description. Proof
Paragraph 2: Source Code. Here it is!
Paragraph 3: Derived Works. The licenses are GNU GPL and CC, both of them allow modifications and derived works, and allow them to be distributed under the same terms as the license of the original software.