To me, it's a game. I get some people might not think so because the game is all menus and numbers, with minimal other graphics (not counting achievement backgrounds). But for me, it's fun. A lot of people like these number go up games where the mechanics are about increasing the numbers fast without much other intermittent gameplay. !incremental_games@incremental.social. It's a whole genre. https://paperpilot.dev/garden/guide-to-incrementals/defining-the-genre/ might have some discussion on whether it's a game or not, I forget, but it sure is a nice read about incrementals.
Also, there's more, but it does take time to unfold.