Me: How's that game you were making?
Friend: I realized I should probably write some tooling to make my life easier. So then I started on that, and I got pretty far, but then I ran into some limitations with the engine I was using, so I decided to write my own. I got pretty far on that, but then I had an idea for a different game, so I shelved the first game and now I'm working on this other one.
Me: Right on, how's the second game going?
Friend: Well I'm investing some time to build tooling before I really get started on it.