Speed, Time and Distance Game — Free Base Commander 7+

Base Commander turns classic speed distance time word problems into a tactical defense game. A raider vehicle rolls down the road toward your base at a steady speed shown in meters per pulse — one pulse is one tick of time on the radar. You watch it move, work out where it will be, and fire at exactly the right pulse. Miss the timing and it breaches the gate; nail it and the shot lands dead on target with a cinematic hit.

500 levels, from d = v × t to linear equations

The 500 levels climb a real maths ladder in 24 stages. First comes plain distance counting and the core relationship distance = speed × time: count how many pulses until the enemy reaches the gate. Then launch windows and who-arrives-first comparisons, chases (a closing gap that shrinks by a fixed amount each pulse), intercepts and meeting points where two movers must arrive together. The later chapters move into middle-school territory: reading distance–time graphs, converting units, average and changing speed, and finally linear equations and simple systems for two-vehicle meeting problems.

Physics you feel in the tactics

Nothing here is a worksheet. Speed, time and distance are things you can see: the radar sweep, the meter posts along the road, the gap closing in a chase, the slope of a motion graph. Because every wrong shot has a visible consequence — a breach, a miss, a target slipping past — children learn to predict motion instead of guessing, and to check their answer against what actually happens.

Made to be picked up fast

A friendly voice reads the mission and the key idea aloud, an animated finger points at the first tap, and each new type of problem gets its own gentle introduction. Big centered answer buttons work well on a tablet, a mute button is always in reach, and ten biomes — steppe, desert, energy fields, city ruins, volcanic zone — keep the journey fresh across all 500 levels.