this game and all chain games are not provably fair.

This game is basically a scam, it is not considered gambling.
The results you see are provable yes, but the game is not provably fair.

Basically these scams work like so:

1) You can by 1 magnificent turd for 0.01 BTC, look at how the stink lines rise and  the flies hover. 
2) Derp derp derpity do, you just gave us money, now the turd stinks even more and costs 0.02 BTC for the next sucker to buy it.
3) Oh no, where you the only last human to play this game (all other bets are run by bots controlled by site owner).
4) Oh noooooo, the timer reset - after a busy day of bots players pushing the price up it magically stopped with you.