More and more games seem to suck on thier own, but can be great with mods. You have entire platforms like roblox where all the games are more or less mods. How long until the platform itself is community created and managed and the viability of games created by companies dissappears?
Sure, but the engine. My understanding is that even the game companies often license something like unreal engine or what not. Those cost money. How long berfore modders create their own engines for the various common game mechanics that are very mod friendly?
Engines cost money for a reason. It means you get the tools while someone else spends the significant resources to develop and maintain it. There are FOSS engines available, but those aren’t as developed or widespread.