Two minds · One hidden prompt
Sense the prompt together.
ESP is a once-daily cooperative game. Two players independently reconstruct the prompt behind the same generated response, then receive one combined team score.
Controlled pre-launch · no public gameplay is live
Privacy by design
Your answer stays private from your partner.
- ESP uses a managed identity provider and never stores player passwords.
- Each answer is sent separately to OpenAI for scoring and is never placed in the partner's scoring context.
- Raw and normalized answer text is scheduled for deletion after 30 days; non-reconstructable scores and game history may remain.
- Public shares contain the team result—not either answer, the hidden prompt, email address, or an individual score.
- Research participation is optional, separate from gameplay, and off by default.