Moon River uses the Kingdomino game system - but without domino pieces.
In the game, you will build your own landscape of pieces to score points, but instead of placing domino pieces in your landscape, the game uses half domino pieces, where one edge has a puzzle connection. You combine two of these half puzzle pieces to create your own domino pieces. This mechanism is designed to provide more variation and randomness in each game.
Instead of building your landscape around a central castle, you start from the river and expand away from there. Additionally, the crowns (i.e., victory point multipliers) from Kingdomino are replaced by cow meeples, where players can use cowboys to move them.
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