Grades 2–8 · A Space Colony Math AdventureWhere kids build a galaxy out of math.
Aphelion Forge turns math into the engineering behind a living space colony. Your child invents machines, powers reactors, and conquers sectors — and every step is a real math problem they actually want to solve.
No sign-up to try · Single-player & private · Works in any browser
This isn’t a trailer — it’s the actual game.
A live look at the colony your child will command. Tap in and start building in seconds.
A live look at the real game — not a mockup.
A game your kid begs to play — that you’re glad they do.
Most “math games” bury a little math inside a lot of filler. Aphelion Forge makes the math the fun part.
Math they actually want to do
When solving an equation powers up a reactor your child just built, math stops feeling like homework. They’ll ask for one more level.
Real practice, start to finish
No cartoon wandering between rare quiz pop-ups. Almost every minute is genuine, on-grade math — simply disguised as engineering.
Grows with your child, 2nd–8th
One colony that scales from counting blocks to algebra. The world stays familiar while the math keeps climbing — no new app to learn each year.
The right level, every time
Difficulty adapts as they go, so your child stays in the sweet spot — challenged enough to grow, never crushed, never bored.
Mistakes are safe to make
Get the math wrong and the dome simply springs a leak — a playful nudge, never a red X. Kids learn to spot it, fix it, and try again, building real confidence.
You can see the learning
A simple parent view shows which skills they’ve mastered and what they’re working on now — real progress you can point to, not guesswork.
Screen time that actually teaches
Turn tablet time into real progress. Instead of mindless gaming, every session is genuine, grade-level math — the screen time you don’t have to feel guilty about.
Safe and private by design
Single-player from day one. No chat, no strangers, no ads — and COPPA-conscious, so you can hand it over with peace of mind.
Invent → Solve → Conquer → Reward
A loop kids want to repeat — because the reward for doing the math is more of the game they love.
Invent a machine
Your child designs a dome, farm, or reactor — and each design sets up a real math problem to solve.
Solve to power it
They do the math to make it work. The game checks every answer fairly — never faked, never hand-waved.
Conquer the sector
Finish a grade’s builds, clear its challenge round, and claim the sector as their own.
Earn the reward
Unlock relics, upgrades, and real arcade games — the payoff your child gets for real progress.
One world, four commander tiers — grades 2 to 8
The same colony your 2nd grader loves is the one your 8th grader keeps coming back to.
Early Explorers
Place value, money & time, skip counting, fractions of a shape, 2D hulls.
Colony Engineers
Multiplication & division, decimals, area, volume, equivalent fractions.
Sector Commanders
Ratios, percents, integers, exponents, mean, two-step equations.
Deep-Space Pioneers
Pythagorean theorem, slope, scientific notation, transformations, roots.
Launch your colony — free.
Pick a grade and start inventing in under a minute. No sign-up, no credit card.