Ever play the phone game adventure capitalist?

You could create a base token, attach a bidbot to this token to give it a use.

Create a mining token that mines the base token (ratio mining so you can control it more).

Create a mining token that mines the 1st mining token.

Continue on with this as far as you want creating miners that mine the previous miner.

Create a website that reads all this information and displays it in a game like format with countdowns for each miner and an option to exchange the base token for miners.