Skip to Top of Page Skip to Navigation Skip to Main Content Skip to Footer

Jonathan Keefer

Game Curator

Jon wearing Miata slippers

Favorite Coolmath Game: Clicker Heroes


Jon is a strategy game fanatic - his favorite games are open-ended puzzles with complex systems and multiple 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 find the best games that make you think for Coolmath since 2014. In his free time, Jon enjoys 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.

Games Reviewed By Jonathan Keefer

Candy Clicker Gameplay

Candy Clicker

March 26, 2024

Turn one candy into billions! Use your candies to purchase upgrades and unlock achievements as you grow your sugary empire!

Ducklings IO Gameplay

February 21, 2024

Kick back and relax with your family of ducks! Grow your flock and bring them back to the nest. Watch out for other ducks and pesky boats.

Planet Clicker Gameplay

Planet Clicker

February 14, 2024

Energize the solar system! The goal of Planet Clicker is to generate as much energy as possible and unlock upgrades to increase your production.

Blob Opera Gameplay

Blob Opera

December 1, 2023

Teach your blobs to sing and compose your own opera! Record your song and share your creation with the world.

Cut the Rope Experiments Gameplay

Cut the Rope: Experiments

June 6, 2023

Om Nom needs his candy...again! Use wacky inventions and quick wits to get the stars, cut the rope, and get Om Nom his candy.

Make the Cube Gameplay

Make The Cube

February 27, 2023

This cube has fallen apart, can you make it whole again? Play through five different modes as you slide the blocks and reassemble the cube.

Snake 3D Gameplay

Snake 3D

November 14, 2022

You've never seen Snake like this! Slither across a 3D cube, eat all the apples, and get the highest score possible. And no, you won't need 3D glasses.

Slide Fill Gameplay

Slide Fill

July 25, 2022

Slide and glide your pieces along the path to fill in the squares and gather shiny gems. Make sure to grab the rare keys for a surprise!

Syncro Gameplay


July 18, 2022

Move all the shapes onto one flower! You only have a limited amount of moves, can you figure out the pattern and find balance?

Roll & Merge 3D Gameplay

Roll & Merge 3D

June 16, 2022

Roll up all the blocks into your very own unique shape! But be careful of tight spaces, or else you could get stuck.