Paper prototypes

Paper is still the fastest design tool ever invented. A deck of index cards, a pencil, and a pair of scissors can turn an idea into a playable game in an afternoon, and changing a rule costs nothing but a new card. Most published games spent their first months as handwriting on cardstock.

The standard toolkit is simple. Index cards or blank playing cards for anything card-shaped. Card sleeves with a paper insert slid in front of a real playing card, which gives you shuffleable, professional-feeling cards you can update by swapping the insert. Cubes, meeples, dice, and money raided from games you already own. Poster board or printer paper taped together for boards, drawn in pencil so you can erase and redraw.

Design your paper prototype for change, not durability. Write in pencil. Leave blank space on cards for balance notes. Keep a stack of blanks at the table during every playtest so you can create a new card the moment someone suggests one. The prototypes that iterate fastest are the ones where changing the game mid-session takes seconds.

When a section of the game stabilizes, you can graduate it to a printed version for legibility while the rest stays handwritten. Mixed-fidelity prototypes are completely normal and signal to testers exactly which parts are settled and which are still moving.