Hey there, I'm bojidar-bg, and this is my first jamcraft (and probably 5th or 7th jam overall)!
For this jam, I decided to go with an idea I had some time ago, a combination between Sokoban and Minecraft. In it, the player can move in a top-down view, pushing things around. Additionally, they can push items into chests and similar things with storage, as well as enter those storages themselves (likely to retrieve something). Finally, they can use items in order to break/harm things, repair things, or move stuff more easily.
On the first day of coding, I managed to implement basic movement and pushing a gray frame around. And yeah, an infinite grid in the background.
Next time, I'll work on chests and inventories, then probably on some rudimentary crafting and items.