First scetches
After the night of the brainshtorming, we decided to combine Flappy Bird's and Unblock Me's mechanics.
First concept was something between Flappy Bird aand Tower Builder, but we found it is too hard for player to control bird and build blocks at the same time. 
Then we finalized our idea and produced some concepts of how it may be look.
The player must extinguish overheating rods of the nuclear reactor using a flying hose.
So, we stopped at the last option. I think, first prototype would be ready in 3-4 hours. Any ideas how to call the game? :smirk: