Games linked to "challenging"

Addicting domino puzzle game. Take the little knight through 49 levels of challenging puzzles.

The object of the game is to navigate your way through 50 levels and try to escape the cave. Along the way you will find complex puzzles, bomb your way through rocks and boulders, swing from ledges, and avoid pits of lava. Can you make it out alive?T

Addicting math puzzle game.

Guide the Puru Purus to the exit by removing boxes in the right order.

Phit is a different and smart puzzle version of Tetris. The challenge is to fit all the blocks into the yellow area.

There's been an accident at the slime factory, and globs of slime are everywhere! It's up to you, Rob the robot, to clean up the mess.

Trapped in an ancient alien space pilot training facility you must use your skills to maneuver your spacecraft out of each area without getting destroyed. The faster you are the better.