I just replayed Little Inferno after something reminded me about it and I noticed there was a DLC released (in late 2022).
It's a sandbox puzzle game where you burn stuff in your fireplace and try to find combos. There's slightly more to it, but really just stuff that's there to stop you buying + burning everything at once and insta-completing the game.
The DLC adds a new catalogue and more combos; if you're replaying you don't need to replay the main game too as it just adds to that (with a few changes).