Math · Spelling · Typing
Arcade games that build real skills.
Kids blast through math facts, spelling and typing in quick, joyful rounds. Missed answers come back until they stick, and grown-ups can see exactly what's clicking.
- No ads, no sign-up
- Works on tablets & Chromebooks
- 3-minute rounds
Pick a game, pick a skill
Three arcade games. Seven skills. Endless practice.
Every skill plugs into every game it fits, so kids can practice the same facts in different ways and never get bored.
Star Defender
Invaders drift toward your shields, each carrying a question. Type the answer to lock on and fire before they get through.
- Addition
- Subtraction
- Multiplication
- Division
- Spelling
- Word Scramble
- Typing
Galaxy Snake
Guide your star snake through space and gobble the right answers. Spell words letter by letter, or pick the answer to each problem.
- Addition
- Subtraction
- Multiplication
- Division
- Spelling
- Word Scramble
Comet Catcher
Comets streak down from space, each carrying an answer or a letter. Slide your saucer under the right one and beam it up. Perfect for the youngest players.
- Addition
- Subtraction
- Multiplication
- Division
- Spelling
- Word Scramble
Fun on the outside
Smart practice on the inside
Behind the lasers and space snakes is a practice engine built on a few ideas that researchers keep finding really work.
Retrieval, not recognition
In Star Defender kids produce the answer from memory instead of picking it from a list, which builds much stronger recall.
Misses come back
A missed fact returns a few questions later in the same round, and again next session, until it's answered right twice in a row.
Instant feedback
Every keystroke and every bite gets an immediate response, and the results screen shows the right answer for anything missed.
Earned progress
Stars reward accuracy, not just speed. Each new level unlocks by earning a star on the one before it.
Kindergarten to 5th grade
Five levels per skill, from first facts to full fluency
Each level suggests a grade band, but kids move at their own pace. Start anywhere, or unlock everything for your class.
K–1
Little learners
- Sums to 5 and 10
- Take-away within 10
- Three- and four-letter picture words
- Relaxed mode: no lost shields
2–3
Building fluency
- Addition and subtraction to 100
- ×2, ×5, ×10 and beyond
- Five- and six-letter words
- Home-row and sight-word typing
4–5
Going for speed
- Every times table to 12 × 12
- Division facts to 144 ÷ 12
- Big words and mega jumbles
- Long-word typing with WPM
For parents
Screen time you can feel good about
Short rounds, no ads and nothing to buy. Set up a player for each child, then check the progress page to see their accuracy, streaks and the exact facts they're still working on.
Guide for parentsFor teachers
Drop it into any lesson in seconds
Share a link that opens straight to the right game, skill and level. Great for warm-ups, stations, early finishers and homework, with nothing to install and no student logins.
Classroom guideQuestions
Good questions, straight answers
Is it really free? Are there ads?
Every game is free to play with no ads, no pop-ups and no in-app purchases. Kids can play without anyone asking for an email address.
What happens to my child's data?
Progress is saved only in this browser on this device. We don't create accounts, and we don't collect names, scores or answers on a server. Clearing your browser data clears progress too.
Which devices does it work on?
Any modern browser on a laptop, Chromebook, tablet or phone. On touch screens, the games show a big on-screen keypad or steering pad automatically.
How long is a round?
Most rounds take two to four minutes, which makes them easy to fit into a morning routine, a station rotation, or the last few minutes of class.
My child is just starting out. Will it be too fast?
Turn on Relaxed mode from the Progress page. Everything slows down, and invaders or crashes no longer cost shields, so younger players can focus on getting answers right.
Ready, player one?
No downloads, no accounts. Pick a game and you're playing in five seconds.
Insert coin