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Spark & Anvil
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▶ 448 apps you can play right in your browser · 📖 1852 illustrated cast stories & audio dramas — all free, no ads. Start playing →

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◆ GridForgeLearn 🎓 Teach 🗺️ Adventure 🤝 Together ⚡ Fluency
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  • 🎯 Grid Run
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Grid Duel

Pick a kit — then 2–4 players take turns on one device. Same questions for everyone; highest first-try score wins.

Choose a kit

Kit 1: Connect-4 Basics grades 4-5 · 25 questions Kit 2: The Fork grades 4-5 · 25 questions Kit 3: Blocking & Threats grades 4-5 · 25 questions Kit 4: Solved Games grades 5-6 · 25 questions Kit 5: Gomoku grades 5-6 · 25 questions Kit 6: Open Threes & Fours grades 5-6 · 25 questions Kit 7: Hex — Connection Paths grades 6-7 · 25 questions Kit 8: Hex Strategy grades 6-7 · 25 questions Kit 9: Reversi Basics grades 6-7 · 25 questions Kit 10: Corners & Stability grades 6-7 · 25 questions Kit 11: Mobility & Territory grades 7-8 · 25 questions Kit 12: Dots-&-Boxes Basics grades 6-7 · 25 questions Kit 13: Parity & The Chain Rule grades 7-8 · 25 questions Kit 14: The Double-Cross grades 7-8 · 25 questions Kit 15: Spot the Shared Primitive grades 7-8 · 25 questions Kit 16: Capstone — Grid Games Synthesis grades 7-8 · 25 questions

Parent digest →

Monthly heads-up: new books, characters, seasonal collections, family activities.

Educator drop →

Classroom-ready: new books to share, curriculum-mapping, printables, pilot briefs.

RSS feed →

50 most-recent books in Atom format. Works in NetNewsWire, Feedly, Reeder.

Browse by age Ages 3–5 Ages 6–8 Ages 9–14 Ages 15–18 All ages
Spark & Anvil

Spark & Anvil makes thoughtfully-crafted educational apps for kids and teens ages 3–18 — playable free right now in your browser, with native iPhone, iPad, Mac, and Apple Vision Pro apps in development. All free, forever. No ads, no in-app purchases, no tracking. Built with Swift 6 and SwiftUI, running on-device AI.

501(c)(3) non-profit (pending) — we’re finalizing fiscal sponsorship; once it’s in place, donations open and are tax-deductible through the sponsor’s EIN. Support the mission →

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© 2026 Spark & Anvil. Made with care for ages 3–18. 501(c)(3) non-profit (pending) · Free forever · No ads · No tracking · COPPA compliant

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