Popular games built on game engine JavaScript

Tetr.io is a modern yet familiar online stacker developed by osk. Play against friends and foes all over the world, or claim a spot on the leaderboards - the stacker future is yours!

OGame is a strategy game set in space, with thousands of players from across the world competing at the same time. You only need a regular web browser to play. You start out with just one undeveloped world and turn that into a mighty empire able to defend your hard earned colonies. Create an economic and military infrastructure to support your quest for the next greatest technological achievements. Wage war against other empires as you struggle with other players to gain the materials. Negotiate with other emperors and create an alliance or trade for much needed resources. Build an armada to enforce your will throughout the universe. Hoard your resources behind an impregnable wall of planetary defences. Whatever you wish to do, OGame can let you do it. Will you terrorize the area around you? Or will you strike fear into the hearts of those who attack the helpless?

Inspired by RuneScape, Melvor Idle takes the core of what makes an adventure game so addictive and strips it down to its purest form! Melvor Idle is a feature-rich, idle/incremental game combining a distinctly familiar feel with a fresh gameplay experience. Maxing 20+ skills has never been more zen. Whether you're a newbie, a hardened veteran, or simply someone looking for a deep but accessible adventure that easily fits around a busy lifestyle, Melvor is an addictive idle experience unlike any other. Do you have what it takes to conquer Melvor?

Gorescript is a classic first person shooter game, inspired by the great old classic FPS games that defined the genre. Fight your way through 18 handcrafted levels of frantic action paced gameplay, from easy to hardcore levels of difficulty.

A browser roguelike with over 60 classes and endless adventure

Prepare for fast-paced, strategic combat in Mordeny, a thrilling 2D top-down shooter where quick reflexes and tactical thinking are your best weapons. Explore unique gamemodes and customize your own character as you unlock new abilities and gear. Whether you're battling solo or teaming up with friends, Mordeny offers an action-packed adventure like no other where every battle demands precision and skill. Join the fight and experience the thrill today!

Browser-based video game trivia with daily 3x3 puzzles to solve and share results. Powered by IGDB.

Sandboxels is an in-browser falling sand simulation game, with mechanics such as heat simulation, electricity, density, chemical reactions, fire, and over 500 unique elements to play with.

A game where players use their imagination and drawing skills to play a game similar to "Telephone" where every other person has to draw what the person says to them.

Dream Doll Dimension is an English Yume Nikki fangame created for Dream Diary Jam 5. You explore a strange dimension, the goal of the game being to solve the puzzles in each room.

Rope is a short (~5 minutes) linear puzzle game with no story, a minimalist artstyle, and a philip glass-inspired soundtrack.

Guess the view count. You will be presented with a random Twitch stream and you have to guess how many viewers they have.

Embark on a comical Sokoban-style puzzle adventure in World of Turtle! Solve 100 levels, collect delicious fruits, and reach the awaiting helicopter. Beware of cunning crocodiles and treacherous waters, as you navigate the levels. Can you outsmart the dangers and conquer this hilarious challenge?

Dragon Court was originally a game released around 1997 as a Java Applet, but became abandonware around 2017. By using Internet Archive's Wayback Machine, much of the game was salvaged, and through the use of cheerpj framework, it was brought back to life for modern browsers.

An Indie MMORPG inspired by classic MMOs and smashing tropes together.

Minecraft Classic is a JavaScript remake of Classic 0.0.23a_01, made to celebrate 10 years of Minecraft and was uploaded to the Minecraft website. This version can be played at classic.minecraft.net for free.

Infinite Chef is a cooking simulation game that can be played directly in a web browser. It features a unique dish name generator and hundreds of ingredients to cook and play with.

Get it right and discover new flags! Enjoy playing Flagaroo and test your knowledge of world flags!

A Multiplayer 2-4 players Ship shooter game previoulys launched as a extension on Chrome addon market in 2004 but now have his own page on Itch.io on 2021.

An agar-style game with many new features and social profiles. The original AgarIO Hub, created by BielSAA in October 2015, was shut down in early 2019. In October 2023, the community recreated the game to allow everyone to relive their nostalgia. The game is now owned by Py9 and Chance.

Unlock Knowledge Battles! Navigate StudioQuiz, your arena for explosive culture clashes, daring trivia duels, and victorious conquests with friends in a world where every question is an adventure!

Avventura nel Castello is a 1982 text adventure game by Enrico Colombini and Chiara Tovena, the first to be created and sold commercially by an Italian author, later included with the Apple II itself.

In the browser-based KingsAge game, you build a mighty kingdom from a small castle: Construct a variety of buildings, train armies and research new technologies. Fight your enemies and expand your empire through tactical alliances and skilled warfare. Write your own story as a glorious ruler now!

Degrees of Lewdity is a text-based erotic sandbox roleplaying game, currently in development by Vrelnir.