Hi everyone, I just released my first game for Playdate!
Soko is a teeny Sokoban game. It's bundled with a bunch of levels that should work nicely on the Playdate’s compact screen, but also allows you to import your own levels. And just for fun I added a few unlockable characters, plus a replay feature to rewatch your past solutions.
Give it a look over at itch.io 
Nice! I do love a bit of Sokoban.
Congrats on the launch.
What font is that you're using in your status bar?
ST-DIN 
I'm using the light variant a bit more than I'd liked (because I love the original/bold version), but it works well for the "less important" labels (:
SWEET!
We're about to use it a bit more in Sparrow Solitaire
Great game! Where can you find info about custom levels format? Is there any place where you can download extra levels?
Hi! Glad you're enjoying the game! 
The levels are stored in a text file (usually with a .sok, .xsb, .txt extension) using the format as described here: Level format - Sokoban Wiki (though the format is more convention than official standard, so you might run into some variations online)
Multiple puzzles are stored in the same file (seperated by a whiteline) to create a "pack" that you can import into Soko. You can see how the first 10 levels are stored here: sokoflan.txt.zip
For more puzzles, you should be able to find a lot of compatible ones online by searching for Sokoban level packs. For example, Sokoban Levels and Sokoban project both list a lot of packs.
Thank you very much!