Runebit Dice: Opal Moonstone D20 (Free Sample)

Free, commercial-use, drop-in. Twenty photoreal D20 result sprites carved from iridescent moonstone with recessed gunmetal numerals. One sprite per face, every face from 1 to 20.

1024 px · 512 px · 256 px   |   transparent PNG

A free companion to the full Opal Moonstone Polyhedral pack. If you like the D20, the matching pack adds D4, D6, D8, D10, D% (percentile), and D12 in the same theme.

What's in the pack

• Twenty D20 result sprites: one per face, 1 through 20.
• Three sizes per sprite: 1024 px, 512 px, 256 px (square, transparent PNG).
• Photoreal renders. Path-traced in Blender Cycles. Carved 3D numeral geometry, gunmetal inset-etch glyphs, and play-of-colour iridescent thin-film over a pearl moonstone body.

Use it for

• Indie tabletop / TTRPG game UIs
• Foundry, Roll20, and other VTT result graphics
• Twitch / YouTube stream overlays for actual-play shows
• Prototyping while you decide if the full polyhedral set is right for your project

Want the full polyhedral set?

The complete pack adds D4, D6, D8, D10, D% (percentile), and D12 in the same Opal Moonstone theme: 50 more result sprites for a full polyhedral RPG kit.

Already grabbed the Frost Crystal D20 or Ember Runes D20 freebies? All three themes share the same render pipeline, so they composite cleanly side by side in a VTT scene or stream overlay.

About Runebit Dice

One-person studio. Every pixel path-traced in Blender Cycles from procedurally generated 3D geometry. No generative-AI imagery, no traced photos. The underlying scenes are regenerated from code, which is why new themes and shapes can be added on demand and stay perfectly consistent across packs.

If you need custom dice visuals for your Kickstarter, BackerKit, itch page, or board game, the same pipeline can produce bespoke renders, transparent PNGs, face-layout sheets, and quote-prep notes.

Credits. Numeral font: Barlow Bold by Jeremy Tribby (SIL OFL 1.1). Font is not redistributed in this pack. It is used only to generate the etched numeral geometry. All artwork is procedurally generated in Blender Cycles from Python/bmesh; no generative-AI models were used.