Verified65% confidenceFactExact time
U.S. copyright law traditionally protects 'expression' rather than 'ideas,' and pure game rules are generally not protected by copyright.
3
Sources
65%
Confidence
Long-term
Relevance
9/6/2026
First Seen
Sources
Related Entities
Related Claims
VerifiedFrom a copyright law perspective, 'ideas' such as narrative structure and genre conventions in literary works are not protected by copyright; what is protected is the specific 'expression.'78% similarUnverifiedThe preservation of unreleased game prototypes often exists in a copyright gray area, with different game companies taking different stances—some tacitly permitting preservation, others resorting to legal action.77% similarUnverifiedCopyright protects the specific expression of code rather than the functional logic itself; borrowing at the functional level generally does not constitute copyright infringement, but patents, trade secrets and trademark rights may still apply.76% similarUnverifiedThe 'look and feel' of an interface is generally not directly protected by copyright under United States copyright law.76% similarUnverifiedUnder the copyright law framework, derivative works require authorization from the original copyright holder, but most countries tacitly tolerate non-commercial fan creations75% similar
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