Jonathan Keefer
Game Curator

Favorite Coolmath Games: Clicker Heroes, Block the Pig, Tube Master
Jon is a strategy game fanatic - his favorite games are open-ended puzzles with strategic, complex systems and creative solutions. He loves that games allow anyone to share in unique experiences, like designing a subway system in Mini Metro: London or building a civilization in Pre-Civilization Bronze Age. He has been helping discover and design games that make you think for Coolmath since 2014.
In his free time, Jon enjoys biking, playing board games, card games, Nintendo, Xbox and PC games. In past lives he has helped design board games and card games, including the Chaotic Trading Card Game and the Twilight movie (yes, that Twilight) board game series.
Jon is a graduate of NYU’s Stern School of Business and is deeply passionate about using games as a way to help people think, learn, and grow. His accomplishments in the web gaming space have given him opportunities to share his insights as a speaker and panelist at industry events such as GDC, Gamescom and Pocket Gamer Connects.
Games Reviewed By Jonathan Keefer
Gravity Grid
January 1, 1999I love this one! LOTS of thinking and planning ahead involved. You have to tip the game area around to get blocks of the same color together so they'll disappear.
Arrows
January 1, 1999The trick to this game is to move all the red arrows from one side to the other while moving the blue arrows in the opposite direction.
Ball in a Labyrinth
January 1, 1999There's a lot of quick thinking involved with this one. You have to tip the game field to move the ball around the box to get to the star. You just can't fall through a hole!
Ball Lines
January 1, 1999Move the balls around to form lines of 5 of the same color... But, each time you make a move, more balls appear.
Orb 2 TNL
January 1, 1999This is a much requested extension of Orb 2... Lots of new levels to try to figure out!
The Christmas Tree Game
January 1, 1999A challenging logic game where you need to turn the circuits to light up the Christmas tree.
Arithmetic Game
January 1, 1999In this timed game, how fast can you pick out numbers from the grid that complete the missing spots in an equation?
Animation Puzzle
January 1, 1999This puzzle is moving while you try to put it together! I could give you some tips for solving this, but it will be more fun for you to figure it out for yourself.
Bridge Crossing
January 1, 1999This is a classic logic puzzle. I get lots of emails about this one from classes that can't solve it. I promise you - there IS a solution.
Civiballs: Christmas Edition
January 1, 1999A Christmas edition of one of our most popular games! Cut the chains to help Santa put the colored balls into the gift boxes that are the same color.