Start with the game loop
Write the core action first: dodge, race, match, build, shoot, cook, survive, or solve. Then add the theme, scoring, difficulty, controls, player count, and whether the game should be competitive, cooperative, party-style, local, or online.
Play and iterate immediately
Instaplay generates the game, assets, controls, and browser runtime together. Play the result, adjust parameters, ask for changes, or remix an existing game into a new idea.
Good prompt formula
Use this pattern: game type + core mechanic + theme + scoring + controls + social twist.
Example: a two-player online cooking battle where players throw ingredients into moving pans, score combos, and sabotage each other with freezer powerups.