Academics
CornerstoneQuest
A 3-minute daily island puzzle for ages 9–14: on a fresh Gullwick island, find the best corner for your first cottage — the one decision that shapes the whole game. Rank the spot by its pips, its mix of goods, and its room to grow, then compare with the surveyor. On-device; no clock, no pressure.
▶ 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 Idris
#0E7490 Characters who teach
Meet the cast
CornerstoneQuest's cast are the founders of Gullwick, each embodying one placement idea; surveyor Idris ranks every corner and asks “where would your first cottage do the most?” Illustrated portraits & chapters are a paid-gen follow-on (STORY-PEND).
Idris
the surveyor — ranks every legal corner by pips, then mix, scarcity, cove, and room to grow
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Pemba
Pips first — count the dots on the touching fields; build where the goods flow most
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Vera
A good mix — three different goods beat the same good three times
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Senna
The scarce good — seek the island's rarest resource; everyone will trade for it
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Rafi
Reach a cove — settle where a 2-for-1 or 3-for-1 port turns spares into what you need
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Anja
Room to grow — leave open neighbours to expand; never box yourself into the coast
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Browse all chapters → · What's distributed-narrative methodology? →
What's inside
Learning goal
A 3-minute daily island puzzle for ages 9–14: on a fresh Gullwick island, find the best corner for your first cottage — the one decision that shapes the whole game. Rank the spot by its pips, its mix of goods, and its room to grow, then compare with the surveyor. On-device; no clock, no pressure.
Mentored by Idris — no data leaves the device.
How CornerstoneQuest 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