I usually dont share this type of document, as the design is still super rough : a lot of questions have yet to be adressed, which I do with quick pen-and-paper prototypes after the first iteration is done. The HLC sells an overall vision, design direction and key gameplay elements (the what) but it doesn't decide too much about the actual implementations of core systems and mechanics (the how).

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Download the HLC - iteration n°1 !

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Itch.io page