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An international holiday celebrated on October 31st, some particularly common motifs of Halloween-themed works include costumes, horror, and magic or supernatural beings.

An American-based, globally-available crowdshare service, Kickstarter offers independent creators the chance to fundraise from their audiences. If a work is tagged "Kickstarter", it likely has run or is currently running a crowdfunding campaign on Kickstarter's platform to help pay for its development costs.