Velvet Alibi Original implementation, category curation, text, interface and vector illustration created for the Play Games Daily project in 2026. No third-party code, art, fonts, word database or game package is bundled. No external libraries are required. The game uses the familiar shared-word social-deduction idea with an explicitly documented house rule set. It does not claim ownership of a general game idea, ordinary vocabulary or another game's name. This local prototype has not been published under a separate open-source licence.