{"version":"2.1.317","anchor":"game-recreation-line-in-the-system-prompt-is-widened-and-mad","canonical_anchor":"game-recreation-line-in-the-system-prompt-is-widened-and-mad","heading":"Claude will build games with similar mechanics but not copy an existing game","tier":"notice","area":"System Prompt","scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.317\/e\/game-recreation-line-in-the-system-prompt-is-widened-and-mad","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.317","markdown":"### Claude will build games with similar mechanics but not copy an existing game\n\nClaude's instructions now allow games with similar mechanics and spell out that it will not copy a game's name, characters, art, music, levels or look\n\n**What**\n\nThe system prompt, the standing instructions Claude Code gives the model, has updated guidance about building games. Claude may now build:\n\n- original games\n\n- games in a genre or with similar mechanics to an existing game\n\n- games from your own designs and assets\n\nIt still will not recreate a specific existing game, even if renamed or called original. The instructions now spell out what that covers: the game's name, characters, art, music, levels or look. The same wording is used when Claude summarises a long conversation, sets up a project, and runs a security review.\n\n**Why**\n\nAsking for a game that plays like one you know is now clearly allowed. Asking Claude to copy a game's characters, art, music, levels or appearance will be declined.\n\n- Area: System Prompt\n- Tier: You'll notice\n- Useful: 2\/5\n- Signal: 3\/5\n- Scope: individual\n- Heads-up: no"}