Algorithm Arena · a kingdom waiting to reconnect

Restore order.
Learn the logic.

Restore a corrupted digital kingdom through playable algorithm challenges. Compare energy cells, explore city networks, rebuild bridges, plant search trees, and encode transmissions.

Nine playable missions across six regions, with a complete collection of algorithm briefings.

EXPLORE / EXPERIMENT / UNDERSTAND

Algorithm Playground

Build a recipe. Meet Big O. Play with growing crowds, crack tiny code cases, and challenge the memory monster. No coding experience needed.

Enter the playground ↗

Semantic Arcade

THE CURRENT BUILDS

TWO GAMES. REAL JUDGMENT.

SEARCH / RANKING

SEARCH RELEVANCE

Rank fictional search results, read the intent, and discover which signals make an answer useful.

PLAY THE GAME →

AI / EVIDENCE

AI JUDGMENT

Inspect three AI answers, decide what to accept, verify, or reject, and learn what each answer is missing.