• colorful d20 on top of rest of dark metal dice set
  • Complementary white only crits dice bag
  • Stacked prism onyx dark metal dice set
  • d12, d20 and d6 metal dice highlighted at front of rest of prism onyx dice set
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Only Crits

Prism Onyx - Metal Dice Set

Prism Onyx - Metal Dice Set

$38.00 USD
$0.00 USD $38.00 USD
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Shipping calculated at checkout.

6-Month Product Warranty

Free Shipping Over $100

60 Day Free Returns

Description

Metal dark enough to appease a god of trickery, the prism set holds the weight of the universe. When he rolls these dice it is always a game of chance, but more often than not the dark god gambles with lives.

Each 7 piece dice collection includes a D20, D12, D10, D8, D6, D4, and D00, as well as a Only Crits gift leather bag.

Note: This metal dice set is 14mm slightly smaller than the regular 16mm

Prism Onyx - Dice Set

Details

  • Zinc Alloy (Metal)
  • 7 Piece RPG Dice Set

Shipping, Returns & Warranty

Free Shipping

Free standard shipping with a purchase of $100 USD or more on all orders. Learn More.

Free Returns

If you're not satisfied with your purchase for any reason, we’ll be happy to provide a free return within 60 days of receipt. Refund policy exclusions apply. Learn More.

180 Day Product Warranty

We warranty each and every Only Crits product to be free of imperfections and manufacturing defects, and we will provide new replacements for any product that is deemed unsatisfactory. Learn More.

Free Adventure & Discord

Your purchase includes a free .PDF adventure from Only Crits, delivered automatically with any purchase.

View Adventure

Join the Official Only Crits

Discord Channel

View full details

Used by Your Favorite Creators

  • Smiling Bob World Builder with glasses and a green cap standing in a forest, wearing a backpack

    Bob World Builder

    "Through sponsorships and even producing my own custom dice set, I've been a happy partner of Only Crits for almost two years now."

    Bob World Builder Set 
  • Cartoon-style avatar of Blaien Simple, a red-haired character in a white uniform with a police hat, pointing with a green bird on their finger

    Blaine Simple

    "Only Crits has been making uniquely stunning tabletop products for years."

    Created Blaine Simple's Kickstarter dice set.

    Silver's Monster Girl Manual! 
  • NoNat1s smiling while holding colorful D&D dice in his hand, wearing a black cap and flannel shirt

    NoNat1s

    "Our experience with Only Crits have shown us their dedication to quality products, iterative design and their attention to detail."

    Watch NoNat1s on YouTube 
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Purple and blue galaxy-style dice with gold numbers from 'Dragon Eye - Multiple Dice Sets' series, on a notebook, ready for a TTRPG game night.

Are These Easy to Read?

We design every set with readability in mind — clean numbers, high contrast, no squinting required.

Don’t love it? Swap it for a different set, no problem.

Swirled orange and yellow D&D dice from 'Dragon Eye - Multiple Dice Sets' on a character sheet during a tabletop RPG session

Yes, They’re Balanced.

They’re fully balanced — but we can’t promise you won’t still roll Only Crits.

We test every set to roll fair and feel great at the table.

Why People Love Only Crits

  • 🛡️ 6-Month Product Warranty

    Every Only Crits product is backed by a 180-day warranty against defects, damage, or manufacturing issues.

  • 🔄 60-Day Free Returns

    Not satisfied? We offer hassle-free returns within 60 days no questions asked, no risk to you.

  • 💬 24/7 Customer Support

    Need help? Our support team is available around the clock to answer questions and solve issues.
Celestial Heart - Sharp Edge Dice Set -purple translucent dice with iridescent flakes and gold numbers, styled for fantasy RPGs.

Yes, They Look Like That

We shoot our dice in natural light with no filters or fancy editing. What you see is what you get.

If something looks off, we’ll make it right.

Constellations Essence - sharp edge dice set has green and orange translucent dice with gold numbers, glowing with internal sparkle on stone

Only Crits on Shipping

We’ve delivered over 40,000+ orders to TTRPG Players around the world.

Tracked shipping, 4–10 business days, wherever you play.

Zero-Risk Rolling

We stand behind every set we make. If you’re not completely happy within 60 days, send it back. No questions. No return shipping. No hassle.

We’ll make it right. Guaranteed.

Know Before You Roll (FAQ)

What if I don’t like my dice?

Try them out. If you’re not 100% happy, return them within 60 days, we’ll cover it.

How do I get my free adventure?

It’s sent automatically after checkout. You’ll also find a link in your confirmation email.

How long will my dice take to arrive?

Orders ship in 2–5 business days and usually arrive within 4–10 business days.

Will the dice look as good as the photos?

We photograph every set in natural light with no filters.

What you see is what you’ll unbox — and if anything’s off, we’ll make it right.

What if something arrives broken or wrong?

No stress. Just email us, we’ll send a replacement (and maybe a little bonus 😉)

What Our Customers Say...