Concentration Room

Nintendo Entertainment System · 2010 · by Damian Yerrick

Concentration Room is a free homebrew memory matching game developed for the Nintendo Entertainment System by Damian Yerrick, released in 2010 and updated in 2019 under the Creative Commons Attribution 4.0 license. Subtitled "An Accident at Hombon Lab", the title presents a traditional card-matching contest through the visual framing of a retro television game show. Players take turns flipping two cards on a grid to locate identical pairs before the board clears. The game supports both single-player practice and competitive two-player matches across several selectable board configurations and difficulty presets. Success requires memorizing card positions and anticipating an opponent's moves on each turn.

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Controls

D-pad to select cards, A button to flip cards.

License & source: CC BY 4.0 — Free homebrew memory game, attribution license. Manual and source ship with the game. Source

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