Adventures between levels 11-15

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Interior spread from Guillman’s Guide to Speed showing vehicle design rules and art of a woman putting magic in an old wooden car.

New DM? No Problem.

Whether it’s your first time behind the screen or your hundredth, our adventures are built for quick prep and smooth play.

Each one includes everything you need: clear encounters, easy-to-follow formatting, and tools to help you improvise on the fly.

Open fantasy RPG book spread showing a red dragon rider chasing a ghost ship while a magical train explodes through lava, paired with 5E rules for speedracing in a high fantasy campaign setting.

Built for Real Play.

Whether it’s an adventure, a sourcebook, or a set of dice, everything we make is designed to actually hit the table.

Clean layouts, smooth mechanics, and tested usability.

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Guillman's Guide to Speed DnD 5e hardcover book featuring a steampunk-style pilot in a flying vehicle. Includes new 5e class options, magic items, and rules for vehicle racing. Published by Only Crits, compatible with Dungeons & Dragons Fifth Edition.
Guillman's Guide to Speed DnD 5e PDF mockup displayed on a smartphone. Features a steampunk pilot cover design with racing-themed 5e content by Only Crits.

Only Crits

Guillmans Guide to Speed

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  • 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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Four smartphones displaying the covers of Guillman’s Guide to Speed 5e PDFs: the core rulebook, Battle Maps, Character Sheet Vault, and Vehicle Owner’s Manuals. Each device shows a digital PDF icon. Created by Only Crits for Dungeons & Dragons 5e.

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

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