STEM
HorizonQuest
The real-sky companion that gets the family OUTSIDE (ages 9–14): see tonight's real Moon phase, pick your part of the world on a map, and learn the naked-eye stars, planets, and asterisms to look for — with five little sky guides. On-device — no location, no camera, no account, no AI.
▶ Play it nowBuilt for sittings of about 20 minutes on the screen. That is our design budget, not a measurement.
Meet your mentor
Every Spark & Anvil app has a friendly mentor character that demonstrates, asks, and patiently scaffolds learning.
Mentored by Vega
#4b5bd6 Characters who teach
Meet the cast
HorizonQuest's little sky-guide crew (ages 9–14): 5 guides, each EMBODYING one observational idea (the character IS the idea). Mentor = Vega, the night-sky guide who looks up with you. Illustrated chapters are on the way.
Polaris the Patient
the North Star — the one star that never moves
Read chapter →
Jupiter the Wanderer
planets wander — bright, steady, and slowly drifting against the stars
Read chapter →
Luna the Shape-shifter
the Moon's phases — new, quarter, gibbous, full, and back
Read chapter →
Sirius the Twinkler
why stars twinkle — their light dances through our air
Read chapter →
the Belt trio
asterisms — little star patterns like Orion's Belt
Read chapter →
Browse all chapters → · What's distributed-narrative methodology? →
What's inside
Learning goal
The real-sky companion that gets the family OUTSIDE (ages 9–14): see tonight's real Moon phase, pick your part of the world on a map, and learn the naked-eye stars, planets, and asterisms to look for — with five little sky guides. On-device — no location, no camera, no account, no AI.
Mentored by Vega — no data leaves the device.
How HorizonQuest handles your kid's data
- ✅ All progress, settings, and AI-generated content stays on the device
- ✅ No analytics, no tracking, no third-party SDKs
- ✅ Free — no ads, no in-app purchases
- ✅ No personal information collected from children — in line with COPPA (updated by the 2026 FTC amendments)
- ✅ No chat with strangers — play-together rooms use a short code and preset emotes, never typed messages