Stackadoo

Stackadoo

About this game

Stackadoo is the math game kids actually ASK to play. 🧱

Kids earn building blocks by solving real math, reading, spelling, and grammar — then spend those blocks building houses, driving cars, adopting pets, and exploring a bright 3D voxel world. The learning IS the game: every block, car, and cartoon is earned by getting an answer right, so practice feels like play, not homework.

Made for grades 2–5 (ages ~7–11), with difficulty that quietly adapts up and down to fit each child.

🌳 MATH MEADOW (free forever)
Your child's home base for math. Solve friendly, leveled problems to earn blocks and coins:
• Addition & subtraction
• Multiplication & division
• Money and making change
• Fractions, place value, telling time & more
Get it right, earn a block, and build something cool — math becomes the key to creating.

🏘️ READING TOWN
A whole world built around literacy:
• Reading — illustrated stories with comprehension questions that level up as your child improves
• Spelling — a real, spoken spelling bee at the Stack Post Office (younger kids tap, older kids type)
• Grammar — bite-sized practice with capitalization, punctuation, plurals and more
• A little Spanish, too!

📚 THE LIBRARY
Kids read leveled stories, pass a comprehension quiz, and UNLOCK animated cartoons to watch. Finish enough books and a ⚔️ Library Battle appears — a tougher challenge that rewards a prize movie and a reading level-up. Reading becomes a quest kids want to finish.

🛠️ WHAT KIDS BUILD & DO
• Build houses, rooms and furniture, block by block
• Drive cars and explore a whole town of shops
• Adopt pets, snap selfies, and earn badges
• Become a Founding Family with their own growing world

🛡️ SAFE BY DESIGN — made by parents
• No ads. Ever.
• No chat, no contact with strangers
• No data collection from children
• No purchasable in-game currency — coins are earned by learning

💛 FREE TO START
Math Meadow is free forever. One optional, parent-only unlock opens Reading Town and every future world (Spanish Beach coming soon) — buy once, yours for life, every update included. No subscription, no surprises.

Learning that feels like building. Download Stackadoo and let your kid build their way to better math, reading and spelling. 🌟

What’s new

First public release of Stackadoo math games for kids.