I feel that splitting the game into too many sectors will make it easier for certain language 'rooms' to be dominated by individuals, removing real competition.
I like the choices you've made in the hours the game is 'open', particularly because I did stay up several days to hold onto my #1 slot before abandoning around thursday due to family concerns.
Would you consider leaving the game open to play, but with no cost/winnings, during the hours that it is currently 'closed'?
I think that wins have an advantage over airdrops, as it allows for a proof-of-work of sort in that a player has to dedicate time to earning the reward, just as a miner has to commit resources to solve a block.
If you do create this coin, I would reccommend setting the starting difficulty high, at least after your decided amount of premine.
Also, to prevent accusations of profiteering, keep all the premined coins in a central few wallets, so that the community can see that you truly are dedicating 50% or whatever towards ingame payouts via the blockchain. That will help to increase trust and keep this from being a pump and dump scamcoin.
Wow, I can't image you type so many word here. impressive!!!