Appendix: Miniatures, or Mini-figurines, or just 'Minis'

Mini-figurine play-pieces are entirely optional, but potentially fun in themselves, however if used should ideally conform to a circular 21mm base for normal humanoid-sized entities. The scale is 64:1, so a normal humanoid would stand 25-30mm high.

Maps for use with minis should use a 42mm square grid or a hexagonal grid with a major-radius/edge-length of 24mm (21mm minor radius). This conforms to the 64:1 scaling and gives space for multiple minis to occupy a single grid grid space, if that is appropriate to the situation. A4 and A3 templates for printing these should have been provided in the archive with these rules. 512:1 grids are also provided for map-making, where the large grids for placing minis on can be too big for convenience.

Square-grids tend to be good for indoor, town, and other such built-environment maps, since people tend to plan construction with a lot of right-angles for ease of lay-out, while hexagonal grids lend themselves to more naturalistic terrain as the way hexagons pack, and the shallower angles they naturally allow, are more organic in nature.

The 64:1 scale also happens to be one of the more common scales for model trains, architectural models, etc., so finding things off-the-shelf at this scale to use as/with miniatures should be relatively cheap and easy. (In model-railway-speak, it is also known as s-scale or s-gauge).

Of course 64:1 being a popular scale for modelling isn't just a coincidence: divisions by powers of two are very easy and natural, and 64 is a power of two. Before 64:1 become popular, its predecessor was 32:1 scale, likewise a power of two.

Also, where do these funny measurement numbers (21mm, 42mm) come from? They are metric-rounded-off (and in decimal, here) conversions of octal multiples of the Planck length, of course! All the cool inter-planetary civilisations use them ... eventually! ;-D

See the second half of Appendix: Measure of a... Something! for (far too many!) details on how - and why - these units of measurement are used in Octas.

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