--- key: mechanic/game-mechanics--gm-keypad-codes type: mechanic id: game-mechanics--gm-keypad-codes lang: en title: Keypad codes summary: >- The player enters a discovered or known number sequence. Code verification turns knowledge into access to a door, safe or device. updatedAt: '2026-10-22' status: active url: >- https://gamemechanics.pro/en/knowledge/mechanic/game-mechanics--gm-keypad-codes/ jsonUrl: >- https://gamemechanics.pro/api/v1/knowledge/en/mechanic/game-mechanics--gm-keypad-codes.json markdownUrl: >- https://gamemechanics.pro/content/knowledge/en/mechanic/game-mechanics--gm-keypad-codes.md aliases: - Keypad code tags: - Game design techniques - Access & Security sourceIds: - source-e4be1353a107f39f - source-6d71d014590e7595 - source-02e8aaf7cdcc3db3 - source-4b3af7d4ff4c6450 - source-fb8584912c6ccc38 sources: - id: source-e4be1353a107f39f title: 'Game Mechanics: Keypad codes' url: 'https://gamemechanics.org/patterns/keypad-codes' verifiedAt: null - id: source-6d71d014590e7595 title: Tom Clancy's Splinter Cell (2002) url: >- https://gamemechanics.org/patterns/keypad-codes/game/tom-clancys-splinter-cell verifiedAt: null - id: source-02e8aaf7cdcc3db3 title: Doom 3 (2004) url: 'https://gamemechanics.org/patterns/keypad-codes/game/doom-3' verifiedAt: null - id: source-4b3af7d4ff4c6450 title: 'Deus Ex: Mankind Divided (2016)' url: >- https://gamemechanics.org/patterns/keypad-codes/game/deus-ex-mankind-divided verifiedAt: null - id: source-fb8584912c6ccc38 title: Prey (2017) url: 'https://gamemechanics.org/patterns/keypad-codes/game/prey' verifiedAt: null relations: [] placements: - catalogId: game-mechanics id: gm-keypad-codes title: Game design techniques url: 'https://gamemechanics.pro/en/mechanics/game-mechanics/#gm-keypad-codes' categoryIds: - gm-category-access-security supersededBy: [] attributes: preview: updatedAt: '2026-10-22' title: Keypad code description: >- The player enters a discovered or known number sequence. Code verification turns knowledge into access to a door, safe or device. image: src: images/mechanics/interaction-keypad-codes.webp width: 600 height: 328 game: Tom Clancy’s Splinter Cell sourceUrl: 'https://gamemechanics.org/patterns/keypad-codes' originalUrl: 'https://cdn.gamemechanics.org/webm/splinter_cell_code_door.webm' sourceFrameSeconds: 3.54 credit: Ubisoft Montréal; frame from clip via GameMechanics.org rights: >- Game imagery © its respective rights holders. Source host: GameMechanics.org. Visible source watermarks preserved. All rights reserved; excluded from MIT and CC BY 4.0. caption: Entering digits on a door panel alt: >- Splinter Cell shows a close-up keypad beside a door, with entered digits visible on its display. markers: - x: 39 'y': 38 label: Display of entered digits - x: 37 'y': 64 label: Numeric entry buttons tips: - Keep discovered codes in an accessible journal. - 'Distinguish incomplete entry, an incorrect code and successful access.' examples: - title: Tom Clancy’s Splinter Cell url: 'https://gamemechanics.org/patterns/keypad-codes' endsAt: null provenance: >- Editorial reference index based on the 199 public Game Mechanics pattern pages checked on 2026-10-20. Original concise RU/EN definitions by gamemechanics.pro; pattern names, category associations and game-reference URLs retained from gamemechanics.org. The source gallery includes a film analogy. Linked materials retain their original rights; references are upstream attributions, not independent verification. license: CC-BY-4.0 codeLicense: MIT attribution: gamemechanics.pro contributors catalogKey: catalog/game-mechanics --- # Keypad codes id: game-mechanics--gm-keypad-codes type: mechanic key: mechanic/game-mechanics--gm-keypad-codes lang: en status: active url: https://gamemechanics.pro/en/knowledge/mechanic/game-mechanics--gm-keypad-codes/ The player enters a discovered or known number sequence. Code verification turns knowledge into access to a door, safe or device. ## At a glance ![Splinter Cell shows a close-up keypad beside a door, with entered digits visible on its display.](https://gamemechanics.pro/images/mechanics/interaction-keypad-codes.webp) [Tom Clancy’s Splinter Cell](https://gamemechanics.org/patterns/keypad-codes) · Game imagery © its respective rights holders. Source host: GameMechanics.org. Visible source watermarks preserved. All rights reserved; excluded from MIT and CC BY 4.0. [Source recording](https://cdn.gamemechanics.org/webm/splinter_cell_code_door.webm), 3.54 s 1. Display of entered digits 2. Numeric entry buttons - Keep discovered codes in an accessible journal. - Distinguish incomplete entry, an incorrect code and successful access. - [Tom Clancy’s Splinter Cell](https://gamemechanics.org/patterns/keypad-codes) ## How it works The player enters a known or discovered numeric code. ## Variants ### How the technique works - The player enters a known or discovered numeric code. ## Context and limits All 199 Game Mechanics entries at the check date: player actions, systems, presentation techniques and contested patterns. Entries are grouped by their first source-card category; all categories appear in their descriptions. Definitions use original wording. References link to game-specific galleries; images and videos remain at the source. ## Connected materials ## Sources and provenance Editorial reference index based on the 199 public Game Mechanics pattern pages checked on 2026-10-20. Original concise RU/EN definitions by gamemechanics.pro; pattern names, category associations and game-reference URLs retained from gamemechanics.org. The source gallery includes a film analogy. Linked materials retain their original rights; references are upstream attributions, not independent verification. - [Game Mechanics: Keypad codes](https://gamemechanics.org/patterns/keypad-codes) (id: source-e4be1353a107f39f) - [Tom Clancy's Splinter Cell (2002)](https://gamemechanics.org/patterns/keypad-codes/game/tom-clancys-splinter-cell) (id: source-6d71d014590e7595) - [Doom 3 (2004)](https://gamemechanics.org/patterns/keypad-codes/game/doom-3) (id: source-02e8aaf7cdcc3db3) - [Deus Ex: Mankind Divided (2016)](https://gamemechanics.org/patterns/keypad-codes/game/deus-ex-mankind-divided) (id: source-4b3af7d4ff4c6450) - [Prey (2017)](https://gamemechanics.org/patterns/keypad-codes/game/prey) (id: source-fb8584912c6ccc38) CC-BY-4.0 · gamemechanics.pro contributors