The draw is roughly every 16-17 hours. We'd keep this version at 100 blocks. As activity increases, the longer window lets the prize pool build up, which means bigger payouts for winners. For a 10 or 1 block game there are many challenges, some blocks get mined within 1 minute, and sometimes blocks get mined 2 or even 3 consecutively which makes it difficult to manage game rounds.

At first I didn't get an idea about 100 blocks. You set it to hit a draw once a day, innit?
What if activity will be increased, do you consider to lower this limit to 10 or even 1 block?

030e0dca83

Exactly. The whole game is built on mining culture, block hashes are the source of truth, and players are basically betting on the output of proof of work. You got it.