I’d like to get back into playing video games, but I don’t want to have to sign up for an online service like Steam or Ubisoft Connect.
I love technical sandbox games like Scrap Mechanic, especially if they have a “creative mode” that allows me to just make stuff.
Minecraft.
You can get partway to Scrap Mechanic with Minecraft and the Create Mod.
Minecraft itself requires an online account, though, yes? Is linked to some sort of central authentication system, needs to be connected to play?
You need a Microsoft account to sign in to the launcher, download the game and play online, but if you already have the game installed you can launch it and play singleplayer without an internet connection.