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Learn About the Game OneKey

Nitrome built OneKey as a puzzle platformer back in the Flash days. It still runs here for players to try. You step into a future world with only one key in hand.

The explorer walks along on its own. You press the spacebar to open doors or move platforms. A second press flips switches. Each change reshapes the level and moves the hero forward. Timing and focus deliver success or a sudden reset.

Colorful pixels fill each scene. A fitting soundtrack keeps the pace alive. The challenge feels simple yet demands real skill. That blend drew a wide crowd of players.