PlayDSA turns data structures and algorithms into missions in a 3D arena. Sort glowing crates, walk linked lists, flood islands, relax Dijkstra's roads, and fill DP tables — one move at a time, with instant feedback on every step.
One-time purchase · No ads · No in-app purchases · Works offline
Real captures from a Moto G 60. Swipe through.
No passive videos. Every level makes you perform each step yourself: swap, push, relax, merge, backtrack.
A wrong move tells you exactly why it was wrong. Stuck? A hint, or "Show me the move" plays one correct step.
Values are crates, nodes are glowing spheres, grids are floors you can look across. Swipe to look around.
Skills get "rusty" over days. A quick replay at the right time locks them into long-term memory.
Every lesson shows the template in Python, JavaScript, TypeScript and C++, plus hand-picked LeetCode problems.
Read a problem, name the pattern. The skill that cracks real interviews, trained on the clock.
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PlayDSA is coming to Google Play. Rated for ages 13+.