Cube 13 offers professional game design services for indie developers, inventors, and small studios. Bring us your concept — we'll help you build it into something real.
Game design is hard. Not the idea part — everyone has ideas. The hard part is turning a concept into a ruleset that works, a document a publisher can read, or a prototype a playtester can hold. That's what we do.
A complete Game Design Document and rulebook for your game. We take your concept, ask the right questions, and deliver a structured, production-ready document covering core mechanics, player experience, component list, and a formatted rules document your playtesters can actually follow.
Everything in Tier 1, plus a working Tabletop Simulator implementation so you can playtest digitally with anyone, anywhere. Great for remote playtesting, early feedback, and showing publishers a playable version before committing to a physical print run.
Everything in Tier 2, plus a physical prototype ordered through The Game Crafter. You'll receive a real, holdable version of your game — cards, board, components — ready for in-person playtesting, convention pitching, or publisher meetings.
Cube 13 has designed and published original titles including Disciple, a martial arts collectible card game available now on The Game Crafter. We know what it takes to move from concept to a product someone can buy — and we bring that experience to every client project.
Tell us about your game. We'll get back to you within 2 business days.