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HC

HyperCard for today's Mac, running original stacks as is

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HC is a native HyperCard clone for current Macs. It opens original HyperCard stacks (Apple's format from 1987 to 1998) and runs their HyperTalk scripts unchanged; on a set of real stacks, 99.7% of scripts are accepted. It adds color, polygon buttons for games, and XCMD extensions compiled to sandboxed WebAssembly. Demo stacks include pinball, Tetris and a Pac-Man-like game, written in plain HyperTalk. macOS 10.13 or later, Intel and Apple silicon, notarized. Free, MIT.