Game library
Curriculum games play at any grade and any subject. New games land every week. Gravity is free. The rest of the library is included with Household. Expert Worlds stay unlimited and free.
158 grade × subject playable combos
Curriculum games
Choose a world, then play it as grade 2 math or grade 8 English — the same game carries the lesson. Guided by public state and province curriculum. We add new games every week.
Spin the Earth. Hunt the answer.
Pick a grade and subject
Geography-only, spin a photorealistic Earth, read each question, and click the correct country on the map. Four countries highlight on the globe; wrong clicks cost a heart.
Household · pick a grade →Drift the starfield. Snatch the word.
Pick a grade and subject
Twelve words float inside an invisible cube in space, drag to rotate, read the question, and click the hidden answer word. Wrong clicks cost a heart.
Household · pick a grade →Fly the skyline. Ring every landmark.
Pick a grade and subject
Fly through glowing rings over New York, watch a clip at each landmark, answer the geography question, and unlock the next checkpoint. Wrong answers cost a heart.
Household · pick a grade →Dance roguelite
Pick a grade and subject
Wrap your practice questions in dance battles on a branching map, elites, rest stops, and boss fights your class will actually finish.
Household · pick a grade →Grab the parcel. Beat the clock.
Pick a grade and subject
Students walk a maze city one question at a time, pick up the answer icon, then dash to the matching exit. Wrong door sends them back; beat the clock for a higher score.
Household · pick a grade →Dodge traffic. Step on truth.
Pick a grade and subject
Each day is one question, dodge cows on a Crossy Road-style farm road, find the colored answer pad scattered in traffic, and step on it before market day. Wrong pad costs a heart; first-try answers score bonus points.
Household · pick a grade →Experiment worlds
Interactive science benches — physics, chemistry, biology. Watch what happens, then show you understood.
Physics
Newton’s orchard
Watch an apple fall, change the pull of gravity, and prove you understand by controlling the drop.
Play Gravity free →Physics
A push on a table
Give a block the same push on different surfaces and prove that friction is what steals the motion.
Household · play Friction →Physics
A cannon on a cliff
Aim a shot, change the angle, and prove you can read the arc from the launch.
Household · play Projectiles →Physics
Two masses on a rail
Crash one mass into another and prove that motion is shared, not lost.
Household · play Momentum →Physics
A pond and a pulse
Change the pulse rate and prove that frequency packs the ripples closer.
Household · play Waves →Physics
A lamp on a loop
Change voltage or resistance and prove that current — what the lamp feels — is V divided by R.
Household · play Electricity →Physics
A world around a sun
Change the launch speed and prove that an orbit is a fall that keeps missing the ground.
Household · play Orbits →Chemistry
A flask on a bench
Warm the flask or feed it more reactant and prove that rate is how fast product appears.
Household · play Reactions →Biology
A meadow with three lives
Nudge foxes or rabbits and prove that a food web moves as one piece.
Household · play Ecosystems →Chemistry
Two rooms and a dye
Warm the rooms or open the door and prove that mixing is particles wandering, not a pump.
Household · play Diffusion →Biology
A dish of living things
Change the growth rate or the ceiling and prove that a population is a rate meeting a limit.
Household · play Population →Physics
A cork in a tank
Change how dense the object is and prove that it floats only when the water is denser.
Household · play Buoyancy →Physics
A mass on a coil
Stiffen the spring or change the mass and prove that a tighter coil bounces faster.
Household · play Springs →Physics
Two magnets on a rail
Change the gap or the strength and prove that magnetic pull grows fast as the magnets close in.
Household · play Magnets →Chemistry
An indicator flask
Change pH and prove that acids turn the indicator one way and bases the other.
Household · play Acids →Chemistry
Ice, water, steam
Change temperature and prove that the same substance can be ice, water, or steam.
Household · play States →Chemistry
Crystals in a beaker
Warm the water or stir harder and prove that more solid can disappear into the liquid.
Household · play Solubility →Chemistry
A piston of air
Change pressure and prove that a trapped gas shrinks when you squeeze it.
Household · play Gases →Chemistry
A two-way mix
Warm the mix and prove that a reversible reaction can lean toward products or back toward reactants.
Household · play Equilibrium →Chemistry
A helper in the flask
Add catalyst or warm the flask and prove that a helper can hurry a reaction without being the reactant.
Household · play Catalysis →Chemistry
Two rods in water
Raise the voltage and prove that electricity can split water into bubbles of gas.
Household · play Electrolysis →Chemistry
Mass on both sides
Move mass from start to product and prove that the total does not change.
Household · play Conservation →Biology
A leaf in the sun
Change light or carbon dioxide and prove that a leaf builds sugar from both.
Household · play Photosynthesis →Biology
A cell in salt water
Change the salt outside and prove that water moves toward the saltier side.
Household · play Osmosis →Biology
A lock and a key
Change temperature and prove that an enzyme works best near body heat and fails when it is too hot.
Household · play Enzymes →Biology
Moths on a tree
Change how sooty the bark is and prove that the moths that match the tree are the ones that remain.
Household · play Selection →Biology
A cell burning sugar
Change oxygen and prove that a cell needs O₂ to burn sugar for energy.
Household · play Respiration →Biology
A cell that splits
Change how many rounds of splitting happen and prove that one cell becomes two, then four, then more.
Household · play Mitosis →Biology
A hunt in the blood
Raise antibodies and prove that more defenders clear more germs.
Household · play Immunity →Biology
A tray of offspring
Change how common the dominant allele is and prove that the visible trait can show up even when it is not the only gene in the tray.
Household · play Genetics →Signature challenges
Bondline, Star Forge, and Worldspin — included with Household. Gravity stays free in Experiment worlds.
chemistry
Live
Household · play Bondline →math
Live
Household · play Star Forge →geography
Live
Household · play Worldspin →language arts
Coming soon
rhythm
Coming soon
language arts
Coming soon
city
Coming soon
nature
Coming soon
Household unlocks guided paths, private group study, and a parent dashboard for up to three children. Expert Worlds stay free.
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