Idk, I feel like for the basic games I make it would be more effort to understand someone else’s game base than it would be to just do it myself. However for things like branching dialog management I would find an addon to handle that, and for things like point-and-click games it might be nice to use a game base, either my own or possibly someone else’s.

I do like reusing components between games, like a first person player or things like that. I should probably find a way to organize them so they’re easy to use in different projects rather than copy-pasting straight from my older games.