Radiant Optimizer Games · 32 browser games, hand-checked
The browser games list, ready to play in one tab.
Black Ops zombies, Skate 3, Halo, Quake, Vice City and more, running on WebAssembly and WebGL. No installs, no sign-up, no launchers. We tell you how each one runs before you click Play.
- No installs or sign-up
- Links to the original projects
- Setup notes on every game
- Updated October 10, 2026
Advertisement
Every game on the site
Filter by genre or by how ready a game is to play. 25 of them start in seconds, 1 needs a first-load download, 6 want files from a copy you own.
Where to start
Hand-picked ports that show what a browser tab can do, from zombies maps to online Quake arenas.
How it works
Three steps, no accounts, nothing to uninstall later.
Pick a game
Browse the grid or filter by genre, by device and by how ready a game is to play. Every card shows the setup label up front.
Read the reality check
Each game page says what the browser version really is: a native web game, a WebAssembly port, an emulated classic or a project that needs your own files.
Play in a tab
Play now opens the original project on its own site. Nothing is hosted here and nothing is installed on your machine.
Where this site comes from
Built from the Radiant Optimizer browser games post
A post on X from @RadiantOpti collected the browser ports people were passing around, and it spread fast. We turned that list into something you can actually use: every entry checked, labelled and written up with controls, tips and honest notes about what works.
Six tiles from the post are not listed here. The Black Ops 2 and BO3 Cheese Cube domains no longer resolve, the Modern Warfare 2 host now answers behind a bot check that cannot be passed, the GTA 5 archive snapshot never captured the game engine, and Unreal Tournament and Hedgewars had no browser build we could confirm. The Kino der Toten and Moon links had also gone dead, so those two point at the working ports we found instead of the original addresses.
Collections
Short lists for a specific mood, from zombies night to 1990s retro.
The Radiant Optimizer list
Every game from the Radiant Optimizer browser games post, checked and playable in a tab.
19 gamesNo download required
Games that boot straight from a link with nothing to install and nothing to configure.
25 gamesNeeds your own game files
Engine ports that want data files from a copy of the game you own. We never host those files.
6 gamesThe 2026 browser port wave
The fan ports that went viral in 2026: Halo CE, Skate 3, Hit & Run, Vice City and the Black Ops zombies maps.
10 gamesZombies maps
Black Ops zombies maps rebuilt for the browser: Kino der Toten, Moon and the original round-based map.
3 gamesPC classics in a tab
Quake, Half-Life, Diablo and other 90s and 2000s PC games running on WebAssembly.
15 gamesPlay with other people
Live servers, real opponents, nothing to install.
15 gamesOpen world in a tab
GTA, Vice City, Minecraft and Simpsons: Hit & Run, all browser side.
5 gamesSports and skating
Skate 3, Skate Rust and PES 6 running in the browser.
3 games1990s retro
DOS era legends emulated or ported so they open in a tab.
3 gamesRuns on a Chromebook
Light browser games that survive a school laptop: no big downloads, no gaming GPU needed.
9 gamesBrowse by genre
8 genres, from round-based zombies to transport tycoons.
Shooters
Online FPS arenas, campaign ports and zombies maps that run in a browser tab.
12 gamesZombies
Round-based Call of Duty zombies ports you can open without installing anything.
3 gamesSports
Skateboarding and football games running on WebAssembly in the browser.
3 gamesSandbox & Open World
GTA, Minecraft and Simpsons: Hit & Run running in a tab through WebAssembly.
6 gamesRPG
Classic action RPGs playable in the browser, with or without your own game files.
1 gameStrategy
Transport tycoons and turn-based classics compiled for the web.
1 gamePlatformers
Retro platformers emulated or rewritten for the browser.
1 gameMultiplayer
Games where you play against real people straight from a browser tab.
5 gamesGuides
How browser ports work, what to check before you click, and where to start.
The Best Browser Games You Can Play Right Now
Here is what each kind of browser game asks of your machine, and which tabs are worth opening first.
5 min readHow to Play Classic PC Games in Your Browser
There are three routes from a PC game to a browser tab, and each one fails in its own way.
5 min readBlack Ops Zombies in the Browser: Every Map That Works
The round-based mode survives the trip to a browser tab, and the maps in the fan port are the ones that matter most.
5 min readWhy GTA, Halo and Quake Now Run in a Browser Tab
A format designed for compiled code turned the browser into a games platform, and the ports keep getting heavier.
4 min readPlay PC classics in a browser tab
Ten years ago, playing Quake, Halo, Skate 3 or GTA: Vice City meant owning the disc, a console or a gaming PC. Today those games, and a growing pile of others, run inside Chrome, Edge or Firefox thanks to WebAssembly, WebGL and clever fan projects.
Radiant Optimizer Games keeps track of the ones that actually work. For every entry we explain what the game is, what the browser version really is, which controls to use and what to expect on the first load. Some are native web games built for the browser from day one, like Krunker or Shell Shockers. Some are full source ports compiled to WebAssembly, like the Quake and ioQuake3 family. A few are engines that need data files from a copy of the game you already own, such as Half-Life and Diablo, and we label those clearly rather than letting you find out after the download.
We host no game files and no installers. Every Play now button points at the original project page, so the people building these ports keep the traffic and the credit. Start with the no download collection if you want something running in under a minute, or the PC classics if you know exactly which 1990s game you are in the mood for.
Questions
The short answers people ask before they start playing.
What is Radiant Optimizer Games?
A hand-checked directory of 32 games you can play in a browser tab, from Black Ops zombies maps and Skate 3 to Quake, Halo, Diablo and GTA. Every entry lists how it runs, what it needs and where the original project lives.
Is this the same as the Radiant Optimizer PC app?
No. Radiant Optimizer is a PC tuning tool and we are not connected to it. This site is an independent fan directory built around the browser games list from the Radiant Optimizer X post.
Do I need to install or sign up for anything?
Nothing is installed and no account is needed. You click Play now and the game opens on the original project page in a new tab.
Why do some games say they may need setup?
Large WebAssembly builds have to download before the first frame, Windows games may ask you to click to start, and a few projects need data files from a copy of the game you own. We label each one so you know before you click.
Which browser should I use?
Chrome or Edge on a desktop or laptop gives the best results for WebAssembly and WebGL games. Firefox works for most of them. Safari and phones are hit and miss except where we mark the game as mobile ready.
Are these games free and legal to play?
We link to the original project pages, we host nothing and we do not provide game files. Some projects are open source, some are unofficial fan ports, and a few need files from a game you already own. Use your own judgement and never download a launcher or .exe from a browser game page.