I would go with anonymity and privacy. As you said, the goal consumer of this game is just normal people that do not know what bitcoin or crypto currencies are and they prefer to keep their personal information to themselves. I think only a group of people will be interested in a story-driven game that you are planning if you ask me you should aim for something addicting, simple but addicting games. Though that would be hard to pair with anonymity and privacy, I don't know. Here's the thing, I played a game in the past where you buy something and while you leave the game the profit is going up and up. I don't remember that game but that is amazing since while you have a lot of money or profit, you could upgrade your house, your PC, your room, etc.
In that game, you could start the player as one wanting to mine bitcoin and maybe 100 to 200 sats are enough profit of it per hour. Then there is this upgrades in his PC where it would speed up his earnings or profit. He could upgrade his PC, his house, he can even buy a miner to more develop his earnings. He could switch to solar so he could reduce his payment in electrical bills. You could add a feature where a hacker can hack his computer, if you will be doing it online, you could match up to other players hacking their PC in that game with a simple mini-game. This is just an idea of mine, hope it gives you something helpful.
Some really nice feedback. Thanks. To be honest, I started last year to think about a bitcoin game that looked like what you are saying. However, I changed my mind over the year. I'll try to explain why.
The persistent online games you describe do make the game studios a LOT of money. When I set out to design such a game, I found it got very complicated for a game designer and even for players. I wanted something that my friends who are not into fantasy games to be happy to engage with what I am building.
The second game you describe,
kind of exists, but I found it not informative at all. The description of them game calls it an "idle clicker".
There's another one that helps you
build a mining operation. However, I think it focusses on one aspect of bitcoin.
In contrast, I really want to build a tool that solves the problem I have. The problem to let my friends understand at a high level, what is bitcoin and why bitcoin is such a useful thing to have.