Board games

Spell-Slot Abacus — print-in-place D&D spell-slot tracker

A print-in-place abacus for tracking D&D spell slots: 9 rails (spell levels 1–9) of captive sliding crystal beads (4/3/3/3/3/2/2/1/1 = full-caster max). Slide a bead to burn a slot, sweep back on a long rest. A tilt-lock detent at mid-span keeps the count from scrambling when you pick the board up. ~107 × 130 × 8 mm, zero supports.