Asklemmy

You give it specifically to me so I can fund the production of a fighting game or something

You don't have to, but it's kinda dumb not to. You can cram it all into a wooden chest and bury it in your backyard if you want, but while its down there its slowly losing value.

Instead you can set it up to make more money for you, without you having to do anything. Money, in sufficient quantities, can become self-replicating unless you do dumb shit with it and waste it. You just hire someone who knows how to make that happen, some financial manager of some sort, and they take care of it. You can even set it up so they just budget out an allowance of your own money for you, so you know how much you can spend every month or whatever. If you want.

This way you don't have to worry about anything, you just know you have such-and-such amount every month to play with, just like most people. It's just a lot more than most people get.

I'd buy a nice house somewhere a bit wild and in the middle of nowhere on the south coast of either England or Wales, something old with character and a big garden with a good pub nearby. I'd also buy a classic wooden sailing yacht and put enough funds aside to maintain her as well as kitting her out for serious passage-making. When I'd done that I'd figure out how much money I need to make work optional for the rest of my life and how much would keep my family comfortable in an emergency, as well as a small 'shit hits the fan' fund kept in something you don't need electricity to access like gold just in case. I'd then donate the rest to charity, the bulk to enviromentalist lobby groups and charities directly helping people (the RNLI comes to mind for example) but also to a few niche causes like keeping the ailing pirate radio ship Ross Revenge afloat and starting a breeding programme to save the highly endangered otterhound. I'd also like to have a few documentaries made, and I'd drop a few content creators I like some donations too.

Honestly all I really want to do is go sailing and not have to deal with the rat race, I don't want to live an oligarch's lifestyle and I definitely don't want the sort of attention and arseache that money would bring you. That money would be far more effectively used for good in the hands of others so I'd end up donating the majority of it, I suspect on the order of 80% of it at least.

A fiduciary (not an accountant) will know what to do. Contact a fiduciary

If you have any decency, get rid of most of it, preferably to charities or political causes.

That sort of wealth in the hands of a single person is obscene, and spending it on luxury when there are people starving and homeless in the world is the height of immorality.

I don't know, I'd probably just give 50 millions to charity and hire a professional to counsel me on what to do with the rest

100m $ !? Other than buying all things I and my family need, I may invest a in real estate that I could rent, and put the rest in the bank.

Multiple banks, only storing what is federally insured by the FDIC in as high yield interest rate savings accounts as I can get.

Invest a decent chunk, find somewhere I can be away from things, set my dad up somewhere nice he can get the medical help he needs without worry.

After that, work on funding pro-womens rights and LGBT+ causes and platforms. Do what I can to help others in a position like mine, where there isn't really a "safe" place around to let the mask drop away.