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?

Play chess online with millions of players around the world! Enjoy free unlimited games and improve your chess rating with 50,000+ tactics puzzles, interactive lessons and videos, and a powerful computer opponent. Unlock your inner chess master today!

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?

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

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.

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.

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.

l3bhm is an interactive website where streamers and their communities play simple, browser-based multiplayer games together during live streams.

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!

You pick up and deliver different types of goods all around the city.

A side-scrolling action game originally published on Naoto’s Script in 2001. It consists of 17 stages including hidden one and its goal is to find a star in each stage, collect 4 stars at least and defeat the boss in the last stage. The author, Naoto Fukuda, is known for his taste for making parody games. Therefore, it is basically inspired by a series of Super Mario Bros. (especially Super Mario 64). Many enemies look very similar to Pokémon characters. It is often mentioned as the most popular browser game on the Japanese Internet in the early 2000s.

Trials in Tainted Space is an adult, erotic, ultimately customizable, textual adventure game under active development by Fenoxo & crew.

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

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!

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.

A browser roguelike with over 60 classes and endless adventure

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.

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

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.

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

Pattern Survivors: Bullet Hell is a dynamic action game where you take control of your space tower and design your own attack patterns to fend off hordes of enemies.

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.