15 Free Games To Boost Your Coding Skills

When I started learning to code, the options were limited—lots of books (not even e-books), some very basic online tutorials, and a whole lot of experimentation. Coding games? Not so much.

Online learning has come a long way in the last few years. There are interactive courses, tons of online tutorials, and one of my personal favorite ways to practice coding: fun free games!

While a coding game alone probably isn’t going to teach you everything you need to know about coding, these free fun games can be a really incredible way to practice the skills you’re learning. If you’re anything like me, you’ll suddenly realize you’ve spent the last four hours reinforcing your coding skills without even realizing it.

I’ve tried out some of the most entertaining and useful games for learning to code. Check out 15 of the top free games for learning to code below.

CodeMonkey teaches coding using CoffeeScript, a real programming language, to teach you to build your own games in HTML5. It’s aimed at coding for kids, but it’s definitely fun for adults, too.

CodinGame offers up fun free games to help learn more than 25 programming languages, including JavaScript, Ruby, and PHP. One of the great things about CodinGame is that you can play with friends or colleagues, and also enter international coding competitions.

CSS Diner is a simple but fun way to learn CSS. There are 32 levels that will teach you the basics of how CSS selectors work. Each level of this free coding game gets progressively more complex, building on what you’ve learned in previous lessons.

Want to learn how CSS flexbox works? Check out Flexbox Froggy. It has a simple interface that teaches you the basics of how things align in flexbox while you help Froggy and his friends.

Flexbox Defense is another great way to practice your flexbox skills. This time, you’ll move gun towers into position along a path to defeat oncoming waves of enemies, using the same kinds of commands as Flexbox Froggy.

CodeCombat is aimed at teachers and students, but anyone can play. Learn Python, JavaScript, CoffeeScript, or the Lua game scripting language. On the beginner Dungeon level, you’ll move your Hero through the game using some basic commands according to the tutorial alongside the game.

If you want to learn Ruby, then Ruby Warrior is the game for you. There are beginner and intermediate tracks to suit your skill level. The lessons start out easy and go from there. You’ll need to login with Facebook to save your progress.

Untrusted is a meta-JavaScript adventure game that tests your JavaScript skills to solve problems. You use JavaScript to guide Dr. Eval through a machine continuum and alter his reality to move between levels. It’s a free fun game for practicing more complex JavaScript skills.

Code Hunt teaches you coding in a unique way. To play, you identify code fragments, analyze them, modify code to match the fragments, and then capture the working code fragment. You can use it to learn Java or C#.

If you ever watched the show BattleBots, then Robocode is for you. You’ll learn programming skills by building virtual robot battle tanks in Java or .NET. Battles are then played out onscreen in real time.

CheckIO and Empire of Code are both strategy games that can teach you JavaScript or Python. Empire of Code uses a space setting and you learn by defending your own base and attacking others, while CheckIO lets you improve your skills by using others’ solutions.

Vim is a highly configurable text editor used by programmers. If you want to learn how to use Vim, then VIM Adventures is a great place to start! Use common VIM keyboard shortcuts to navigate your way through a Zelda-like adventure game.

Cyber Dojo has practice exercises and challenges for dozens of coding languages including Ruby, JavaScript, PHP, Python, and more. Each exercise spells out a challenge to complete with an example showing what the end result should look like. It’s a great way to practice your code skills.

Elevator Saga tests your JavaScript knowledge with challenges related to moving an elevator and transporting people in the most efficient manner possible. It starts out with a challenge to move 15 people in less than a minute, with challenges getting progressively harder from there.

Code Wars helps you improve your skills by training in challenges with others. They offer a huge variety of languages, including JavaScript, Swift, PHP, Python, Ruby, and Haskell. You’ll have to prove your skills first with a basic test of your understanding of the language you want to practice.

Not quite ready to join in the games here? Check out Skillcrush’s free 10-Day Coding Camp for a basic overview of what learning to code is all about.

This piece was written by CAMERON CHAPMAN and originally appeared on SkillCrush.