Concerning the photo: Explicitly agreed by the author upon upload on boardgamegeek:

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Concerning the game itself:

"Sculptures, paintings and action figures do not have utilitarian aspects and are therefore generally copyrighted as works of fine art. On the other hand, ordinary alarm clocks, dinner plates, gaming consoles or other objects of daily use are usually not copyrightable."

This is a complete game with a utility. (It isn't like a game figurine that can be considered a work of art and only part of a utility product but more like a gaming console with a nice design that cannot be separated from the product)

この著作物の著作権者である私は、この著作物における権利を放棄しパブリックドメインとします。これは全世界で適用されます。 一部の国では、これが法的に可能ではない場合があります。その場合は、次のように宣言します。 私は、あらゆる人に対して、法により必要とされている条件を除き、如何なる条件も課すことなく、あらゆる目的のためにこの著作物を使用する権利を与えます。