CheckIO - CheckIO is a web site with a mission: To teach JavaScript and Python coding skills through a game-playing interface. It is designed to teach new skills or improve existing skills through completing challenges.

Coding is fun! - Series of logic puzzles using programming principles

Boom.dev - Boom is the first competitive and gamified coding school, set up to empower the next generation of top software developers.

HabitScript - Gamify your coding time

Seismic Learning - Ramp faster, hone skills, and personalize coaching. Click here to see how Seismic Learning (formerly known as Lessonly) streamlines learning and coaching.

Goals & Challenges by Fini - A social way to gamify goals and habits with challenges