Credits
The artwork and code by others that we use in the app, who made them and under which licence. Thanks to all of them.
Chess pieces
The “kiwen suwi” pieces by neverRare, as published by Lichess. We recoloured them: red and blue, with a dark outline.
neverRareLicence: CC BY 4.0What we changed: chess/LICENSE.txt
Hands and icons
The rock paper scissors hands and some icons (the ping-pong paddle, the minesweeper bomb and the waving hand) are from OpenMoji, the open-source emoji and icon project. We recoloured them and gave them a thicker outline; these versions are shared under the same licence.
OpenMojiLicence: CC BY-SA 4.0What we changed: rps/LICENSE.txt, icons/LICENSE.txt
Everything else
The other icons, the monsters and the boards are made for the app.
Code
The chess rules use chess.js, by Jeff Hlywa. chess.js (BSD 2-Clause)