| Time to playable | 20% | Minutes from pasted prompt to a URL another person can open and play. |
| Browser-playable output | 15% | No install, no engine setup, and no forced creator onboarding before first play. |
| First-choice clarity | 15% | A new player can identify the first meaningful action within 10 seconds. |
| Share and recipient path | 15% | The output has a specific share URL, preview context, and a landing path that starts the recipient in the right game. |
| Player behavior | 25% | Measure starts, choices, completion, repeat play, share/start, and D7 return from equal traffic. |
| Creator iteration speed | 10% | How quickly the creator can revise the game after playtest feedback. |