What you can do as well is make a big project but release it in increments like updates and chapters etc. This way you can pace yourself, get feedback from players and improve on your game. Doing large projects on your own are possible but difficult.
One downside of using increments is that some people may not want to wait for updates and may lose interest.
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That is true! I see a lot of people that do that.
It'd be nice to have something that's actually playable over however long it takes to make the game.
I was thinking about having a demo. So, there'd be devlogs, and eventually a playable demo so people can experience the idea! It's just a thought.
I feel like a devlog for the same game would get a bit boring after the 20th one, hahah...
Not really as this is where your mini game jam projects would come in.
You could take a break, the people following you and your projects can experience something new and afterwards you could return to development with even more ideas/experience.
A lot of people on both itch and gamejolt post so many devlogs of their games. ( my first game that I still update has over 20 devlogs). Posting more devlogs just shows how much you care for the game.
Demo actually seems like a nice idea!!