HT Games

How to Copyright a Playing Card Game: Protect Art & Text, Not Mechanics

You cannot copyright a game mechanic or ruleset. Copyright protects expression, not ideas.

What You CAN Copyright

  • Artwork: Card illustrations, card backs, box art, rulebook layout.
  • Text: Exact wording of rules, flavor text, card names (if creative).
  • Graphic design: Card template, iconography, typography choices.
  • Code: Digital implementation (Unity/Godot project, app source).

What You CANNOT Copyright

  • Game rules / mechanics / procedures.
  • Concepts (deck-building, trick-taking, set collection, worker placement).
  • Functional elements (tap to rotate, draw 5, discard pile).
  • Generic terms ("draw," "discard," "hand," "mana," "life").

Stronger Protections

ToolProtectsCost/TimeDuration
TrademarkGame name, logo, tagline, trade dress (box look)$250–350/class (USPTO); 6–18 mo10 yr, renewable
Patent (Utility)Novel, non-obvious mechanic/system$10K–20K+; 2–4 yr20 yr from filing
Patent (Design)Ornamental design (card shape, box, board)$2K–5K; 1–2 yr15 yr
Trade SecretUnpublished mechanics, algorithms, balance dataFree (NDAs, security)Indefinite (if secret)
Copyright (Registration)Art, text, code (enables statutory damages)$45–125; 3–6 moLife + 70 yr

Practical Strategy

  1. Trademark the name + logo — Essential for brand.
  2. Copyright register art + rulebook PDF — Cheap, enables DMCA/lawsuits.
  3. Patent only if truly novel mechanic — Most aren't; consult IP attorney.
  4. Use contracts: NDAs for playtesters; licensing agreements for publishers/manufacturers.
  5. Publish / timestamp: Itch.io, GameCrafter, Kickstarter — establishes prior art.

Key Precedent

Lewis Galoob v. Nintendo (1992): Game Genie not derivative. Tetris v. Xio (2012): "Look and feel" (expression) protected, not rules. DaVinci Editrice v. Ziko Games (2010): Bang! mechanics not copyrightable.

Protect the art, trademark the name, patent only the genuinely inventive.


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