MISSION BRIEF / FIXED RULES

How to play Signal Run.

Signal Run is an open-answer daily trivia game. Pick a theme, preview each question for up to three seconds, then transmit an answer within 25 seconds.

Scoring

The first valid answer locks the question. Exact canonical answers and reviewed aliases map to six editorial tiers: Local noise 10, Clear carrier 15, Relay 30, Long range 60, Deep signal 85, and Horizon signal 100.

Daily and practice modes

The first completed Daily Transmission for a UTC date advances your personal mission. Later runs are practice and do not add another daily award. No client-side score is presented as a global ranking.

Accessibility and sound

Audio starts only after the start action. Mute, volume, keyboard controls, numeric countdowns, and reduced-motion preferences are supported.

Examples

• Name a chemical element. Example accepted answer: carbon. An exact answer from the Science & Invention catalog.
• Name a bird species or familiar bird group. Example accepted answer: shoebill. A precise, less obvious entry from the Animals & Nature catalog.
• Name a writing system or script. Example accepted answer: Ogham. A source-backed answer from the History & Civilization catalog.

Limits

• Rarity is editorial. Signal Run does not claim to know how many players chose an answer.
• The first completed Daily Transmission for a UTC date advances one personal mission record. Replays are practice records.
• Local records are private to this browser. The first release does not provide a verified global ranking.
• Question sources identify the knowledge family and answer facts. They do not prove player demand, popularity, or search ranking.