I'll dissent from the comments here and recommend you should start by creating a mod instead of building a game from scratch. Find a game that's known for their shitton of mods (think Skyrim or Minecraft), which means there's a vibrant mod community, and begin creating your own mod. Your first mod is almost certainly going to be an existing mod with some values tweaked. That's okay. The community will guide you towards the right path. The main advantages from creating a mod instead of developing a game is a lot of the backend and boring shit like menus have already been done. But just because you're not creating everything from scratch doesn't mean mods are somehow lesser than videogames. Dota and Counterstrike started out as mods. You have mods like Brutal Doom that completely change how the base game is played and breath new life to the game, even affecting the game design of the newer Dooms.
In developing your own mod, you'll face the same challenges that game developers also face like design creep or QA. If your mod is ambitious enough, you'll most likely need outside assistance, which means you'll have to market your mod to the right people in order for them to playtest your mod, which isn't that different from how indie devs market their games to the general public or a dedicated fanbase.
There will be numerous times when you'll hit a wall because the base game would say "um, you can't do that lmao." Eventually, you'll hit the wall enough times and have a laundry list of features that you wish your mod could have. The thought "the base game is holding me back, fuck this I need to develop my own game" will keep on popping up until you'll turn that thought into a reality.
I'll dissent from the comments here and recommend you should start by creating a mod instead of building a game from scratch. Find a game that's known for their shitton of mods (think Skyrim or Minecraft), which means there's a vibrant mod community, and begin creating your own mod. Your first mod is almost certainly going to be an existing mod with some values tweaked. That's okay. The community will guide you towards the right path. The main advantages from creating a mod instead of developing a game is a lot of the backend and boring shit like menus have already been done. But just because you're not creating everything from scratch doesn't mean mods are somehow lesser than videogames. Dota and Counterstrike started out as mods. You have mods like Brutal Doom that completely change how the base game is played and breath new life to the game, even affecting the game design of the newer Dooms.
In developing your own mod, you'll face the same challenges that game developers also face like design creep or QA. If your mod is ambitious enough, you'll most likely need outside assistance, which means you'll have to market your mod to the right people in order for them to playtest your mod, which isn't that different from how indie devs market their games to the general public or a dedicated fanbase.
There will be numerous times when you'll hit a wall because the base game would say "um, you can't do that lmao." Eventually, you'll hit the wall enough times and have a laundry list of features that you wish your mod could have. The thought "the base game is holding me back, fuck this I need to develop my own game" will keep on popping up until you'll turn that thought into a reality.