Archmage Azor

I want less games built around co-op. I don’t have friends to play with.

Use Nexusmods and their Vortex mod manager. It simplifies it a lot, though you may have to watch a quick tutorial video or two. It’s nothing that you won’t learn, though.

Certain other games may have other mod loaders just for them, that you can use. KSPs CKAN comes to mind, or Curseforge for Minecraft. A lot of games handle mods through the Steam Workshop.

In the case of using mod loaders most of the stuff you will have to do yourself will be limited to keeping mods updated, resolving conflicts, and managing load orders (where applicable).

If I ever make a game I would totally hide bullshit files in the game data just to mess with miners.