Popular games built on game engine HTML

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?

Diep.io is a multiplayer shooting browser game like Agar.io, Wings.io and Slither.io. While playing this game, you have to control a tank to destroy the other players and obstacles.

I'll show you four words. Find the one that doesn't match.

It is a collectible card game. It is a game with simple mechanics, in fact all the cards have 1 to 3 keywords to describe their skills. The game consists of resetting the life points of the opposing characters (Heroes) to earn VPs (Victory Points) with each kill. Within the game there are different types of cards, permanent and temporary. The game is all written in HTML, PHP and JavaScript so it can work on any type of browser.

Mega Man X: Corrupted is an unofficial, fan-made game in development by John K. Bacchus (also known as JKB) coded in AS3 using Flex compiler on Flash Develop, but as Flash was phased out at the end of 2020, it was switched to HTML5. The game is modeled after the MMX series' features and gameplay, in the graphic style of the SNES Mega Man X games, with a non-linear interconnected environment, and skill trees to enhance characters and weapons. This title is currently still in development, but will be free on launch.

Tricky Keys is a puzzle platformer made in 48 hours for GMTK Jam 2020, with the theme "Out of Control".

VGM Quiz (Video Game Master Quiz) is a free multiplayer and real time quiz dedicated to the video gaming world. The goal is to find the title of the video game from which the music is coming from.

In A Day for Soft Food the player controls the hungry cat of a household. Its master (called "the Provider" in the game) is sound asleep in his bed, ill from some unknown sickness. His state of misery has left his faithful pet with barely anything to eat, and even the slightest mewl seems to annoy him. Can food be found without waking him up? As with most modern interactive fiction, the player types in full sentences describing their intended actions (LOOK AT THE PROVIDER, MEW, and so on). The game requires a Z-interpreter to run.

Clickpocalypse II is an incremental game disguised as an idle RPG. Create a party to bravely explore terrible dungeons and mercilessly exterminate every monster in the world. Find items, go up levels, learn spells, upgrade abilities, and earn achievements.

Cruxata was a web MMOG based on medieval wars during the crusades, a series of intermittent military campaigns sanctioned by various Popes in the Middle Ages. The game was created by an independent game developer know with the nickname "lucky". The game was recently closed due to lack of time to maintain and update.

Prestige Tree is an incremental idle game made for browsers by Jacorb, and features multiple layers of progression that compile upon each other in a tree format.

Enigmi.net (now Enigmi.online) is a browser-based puzzle game where players progress through 91 increasingly challenging riddles. Originally released in 2005 and preserved in 2024, this Italian-language web puzzle requires players to solve each level by discovering a specific word or phrase that becomes part of the URL to access the next challenge. The game features a diverse range of puzzles that incorporate visual elements, audio clues, and logical reasoning. Players may need to use image editing software, audio tools, and web searching capabilities to uncover solutions. Each answer must be entered in lowercase without spaces or special characters, and while the game's logical framework is in Italian, solutions can include words from other languages. With only 169 players having completed all levels since its launch, Enigmi.net offers both solo and group play experiences, supported by a Discord community where players can find hints when stuck. The game is designed to be accessible to all skill levels while providing a substantial challenge that rewards patience and investigative thinking.

Fancy Island is a Japanese horror puzzle game with the front page being disguised as a cute Nekomimi illustration gallery front. Upon clicking the catgirl in the middle, the game will begin. The objective is to reach the goal gallery in a point-and-click environment while avoiding jumpscares/monsters.

Climb the Tree! Solve real life problems by choosing the best advice.

The Idolmaster: Shiny Colors or "Shinymas", is a training simulation browser game. The game has a system similar to The Idolmaster console games, with the main gameplay including lessons, auditions, and a story with visual novel elements.

Clickpocalypse is an incremental game disguised as an idle RPG. Create a party to bravely explore terrible dungeons and mercilessly exterminate every monster in the world. Find items, go up levels, learn spells, upgrade abilities, and earn achievements.

Pongis Run is a simple time-killing game for your utter enjoyment. Run around and try to eat as many gold blobs to gain points. But you're not alone. Your bot opponent will try to eat gold blobs before you can. Special power blobs give you superpowers. You can get super fast or super-size yourself, shrink, temporarily blind or freeze your opponent. There are infinite levels for you to play. With every level you unlock, your opponent gets smarter and quicker.

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.

Team up with Moon Girl and Devil Dinosaur to catch some baddies!

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.