What’s your goal in making a game? You mention you haven’t got many people to play with irl, so are you considering making a single player game?
Are you just trying to save money so you don’t need to pay for other games? (If it’s this one, I’ve got some bad news for you as making games is extremely time intensive. It may be relatively cheap but you’d be better off working part time for a week and buying the game you want rather than spending hundreds or thousands of hours creating something new.)
Another thing to consider, even if you are making a single player game, is you’re going to need to test your game. A lot. And while testing on your own, hundreds of times, is going to be necessary, you’re also going to need to get feedback from other players - some who will struggle through your rules to learn how to play, helping you improve that aspect. Others who will try to break the game, helping you balance the game. Others will simply play it and just give you feedback to tell you whether or not it’s fun, but if you want other people to be and to enjoy your game (and not everyone will, no matter how good it is) you’ll need other people to test it and give a perspective you simply can’t have developing it entirely on your own.
You said you don’t have access to a lot of games already, but having experience playing a wide variety of different games of different genres will be important to help you figure out what your game needs to make it fun and balanced.
I’d suggest putting some time into researching game design theory to help you understand what kinds of things are going on under the hood in game development.
Most importantly, make sure you’re having fun doing it. Game development can be a slog but if you’re passionate about what you’re doing it’s worth it enjoying your game and seeing others enjoy your game in the end.
Giving Nazis a platform is fucking cringe.