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
Squares
December 31, 1998If you like Gem Swap, you should try this one. It's a lot harder, but, once you get the hang of it, it's pretty cool. Takes a first losses to get how to do it.
Gem Swap
December 31, 1998A great version of Gem Swap. It's timed, but, when you make a match, you win more time. Multiple levels.
Subtraction Blast
December 31, 1998Fire your cannons at the falling numbers. It's great arithmetic practice, and you get to shoot stuff. Can life get much better than that?
Mouse Trap
December 31, 1998This one is a lot harder than it looks. All you have to do is put up walls to trap the mouse... But, he's really good at getting past you.
Construction Fall
December 31, 1998Aim and launch the balls to knock over a structure. You'll need to think ahead and plan your moves!
Clueless Crossword
December 31, 1998This is a very cool crossword puzzle. It takes a lot of trial and error to solve it and, if you get desperate, you can ask for hints.
Make 15
December 31, 1998Compete against the computer to see who can pick numbers that add up to 15 first.
Orb
December 31, 1998You have to have a steady hand and a good mind for the Orb games. Figure out what to do next, but hit a wall and it's over.
Greater Than Sudoku
December 31, 1998This is like Sudoku, but with a twist. Not only do you have to fill in the large squares with the digits 1-9, you also must obey the greater than signs!
Eine and Kleine
December 31, 1998Fly with an umbrella, teleport, break your way through with a hammer to collect all the stars and get through each level.