Damn bro, I had that idea like in 2013

Best of luck! It will be tough to make, but it's very much possible.

Always interested in hearing about it, as Minecraft is probably one of the only games which gives enough freedom to implement something like this. In fact, I believe many have attempted, and partially succeeded in the past. You are probably aware of it, but I believe there was a server which integrated Bitcoin, and had Bitcoin payouts for things like mining in Minecraft. There was also a casino inside Minecraft, which I believe might have closed down due to legal issues, I'm not entirely sure on that though.

I do absolutely believe though, that the best way of making this a success is to focus less on attracting those already involved in cryptocurrency, and instead trying to entice the general Minecraft playing demographic, but offering the ability to earn money that can be redeemed to real life cash.

 

I see some users are suggesting that you should create some in-game currency that can be converted to Crypto, but for me it kind of defeats the purpose. I want to see a server where you can use Bitcoin (BTC) as the economy and not some kind of fantasy token. (We see lots of games where in-game currencies are created and in some of these games, people pre-mine them to enrich themselves)

Minecraft still has a huge cult following and we can tap into a group of people that are very passionate and would appreciate some real world reward for their time and effort. (That are not linked to Fiat currencies) 

Something like this : https://finance.yahoo.com/news/minecraft-players-win-bitcoin-treasure-160033197.html