How this works
Browser games can use different delivery methods, and the method matters. QuakeJS documents a JavaScript port of ioquake3 using Emscripten; Diabloweb documents a WebAssembly build based on devilution. The WebWars author describes another compiler path for Hedgewars. Those project-specific sources do not prove that every title in a cover image has a working port. A browser can also display a recreation or a cloud stream. Code still needs to load, and commercial game assets may need a separate license. We host only the list and guides; the games belong to third-party hosts, whose availability and requirements must be checked individually.
The current list, grouped by series
18 source entries across seven groups. Bookmark this page for status updates; maps and modes are not additional distinct games.
Call of Duty: Black Ops
| # | Game / map / mode | Series / release | Browser status | External entry | What we know |
|---|---|---|---|---|---|
| 01 | Black Ops — Zombies | Call of Duty / 2010 | Entry found; browser-dependent | Check host ↗ | The host lists ten BO1 maps. Selecting Kino in the recorded check encountered a worker-graphics or private-storage error; gameplay remains unverified. |
| 02 | Black Ops — Moon | Call of Duty / 2011 | Entry found; browser-dependent | Check host ↗ | The BO1 host lists this map. Our Kino check encountered an unsupported-browser message for worker graphics or private storage; gameplay and licensing remain unverified. |
| 03 | Black Ops — Kino der Toten | Call of Duty / 2010 | Entry found; browser-dependent | Check host ↗ | The BO1 host lists this map. Our Kino check encountered an unsupported-browser message for worker graphics or private storage; gameplay and licensing remain unverified. |
| 04 | Black Ops II — Zombies | Call of Duty / 2012 | Unconfirmed | Not verified | The candidate refers to the Zombies mode. We have not established whether the browser claim is a port, recreation, cloud stream, or footage. |
| 05 | Modern Warfare 2 | Call of Duty / 2009 | Unconfirmed | Not verified | This entry refers to the 2009 release. Campaign, multiplayer, and browser availability have not been verified. |
Skate
| # | Game / map / mode | Series / release | Browser status | External entry | What we know |
|---|---|---|---|---|---|
| 01 | Skate 3 | Skate / 2010 | Unconfirmed | Not verified | No direct browser implementation has been confirmed. A stream or recreation should not be presented as the original console game. |
Counter-Strike
| # | Game / map / mode | Series / release | Browser status | External entry | What we know |
|---|---|---|---|---|---|
| 01 | Counter-Strike 1.6 | Counter-Strike / 2000 | Entry found; check blocked | Check host ↗ | A server-list host exists, but our request encountered a verification challenge. Actual gameplay, account requirements, and licensing are not confirmed. |
| 02 | CS Surf | Counter-Strike / community mode | Unconfirmed | Not verified | Surf describes a movement mode rather than a standalone release. Engine, maps, browser controls, and direct host remain unknown. |
Halo
| # | Game / map / mode | Series / release | Browser status | External entry | What we know |
|---|---|---|---|---|---|
| 01 | Halo: Combat Evolved | Halo / 2001 | Unconfirmed | Not verified | A browser claim does not identify the original game, a fan recreation, or streaming. We need a direct entry and an actual gameplay check. |
Grand Theft Auto
| # | Game / map / mode | Series / release | Browser status | External entry | What we know |
|---|---|---|---|---|---|
| 01 | Grand Theft Auto V | Grand Theft Auto / 2013 | Unconfirmed | Not verified | No browser-native build has been verified. Any cloud service may require an account, payment, and a licensed copy. |
| 02 | GTA: Vice City | Grand Theft Auto / 2002 | Unconfirmed | Not verified | The original game uses copyrighted assets. No authorized browser host or specific port has been confirmed for this candidate. |
id Software classics
| # | Game / map / mode | Series / release | Browser status | External entry | What we know |
|---|---|---|---|---|---|
| 01 | Quake | Quake / 1996 | Unconfirmed | Not verified | Open engine source does not make the original game assets free. We still need the intended host, asset requirements, and a runtime check. |
| 02 | Quake II | Quake / 1997 | Unconfirmed | Not verified | The browser build and game-data requirements are unknown. Engine licensing and game-content licensing must be checked separately. |
| 03 | Quake III Arena | Quake / 1999 | Candidate host unavailable | Not verified | The candidate quakejs.com host returned an invalid SSL error (526) during our check. No working Play link is published and gameplay remains unverified. |
| 04 | Return to Castle Wolfenstein | Wolfenstein / 2001 | Unconfirmed | Not verified | No playable host has been confirmed. Source availability for an engine does not establish rights to the game's art, audio, or levels. |
Other classics
| # | Game / map / mode | Series / release | Browser status | External entry | What we know |
|---|---|---|---|---|---|
| 01 | Half-Life | Half-Life / 1998 | Unconfirmed | Not verified | Valve documents the original GoldSrc game and native anniversary features. No browser project or host is identified; Steam Remote Play is not proof of a browser-native port. |
| 02 | Diablo | Diablo / 1996 | App found; runtime unverified | Check host ↗ | Diabloweb offers a shareware option. The full game requires your own DIABDAT.MPQ from an original copy. The app responded, but gameplay was not verified. |
| 03 | Hedgewars | Hedgewars / 2007 | Reported port; check unavailable | Check host ↗ | The WebWars author documents hotseat controls, no mobile controls, and unfinished multiplayer. Our host check failed; reported loading sizes conflict, so no fixed transfer total is verified. |
Missing or incorrect entry? See Contact & corrections for the evidence needed. No comments system or submission form is enabled.
How to try an entry: three steps
- Check the guide first. Read the entry’s host status and requirements. A title without a checked address has no Play link here; a found entry is not the same as a successful session.
- Open an identifiable host. Follow the documented address on your own permitted device. Read the loader and access requirements. First-load times vary; no universal 10–30 second promise or browser-compatibility list is established.
- Use the version’s documented controls. Confirm game-data permissions, keyboard or touch inputs, and supported modes. Original-game controls and mobile availability cannot be assumed for a browser implementation.
Three practical truths
Availability is a dated finding.
The QuakeJS candidate returned an SSL error; the WebWars host check failed. A project repository can remain useful even when a public entry is unavailable.
Modes need their own evidence.
A map menu does not establish single-player or multiplayer. QuakeJS documents web/native network limits; WebWars multiplayer is reported as unfinished. Do not generalize those findings to every title.
Device rules still apply.
A managed school or work device may restrict storage, graphics features, or gaming. Follow its policies; a blocked host is not a reason to evade network or device controls.
Every entry has its own guide
The cards link to the exact entry page, including map-level differences, known source lineage, and questions still unanswered.
Black Ops — Zombies
The host lists ten BO1 maps. Selecting Kino in the recorded check encountered a worker-graphics or private-storage error; gameplay remains unverified.
Read the entry guide ↗Call of Duty: Black OpsBlack Ops — Moon
The BO1 host lists this map. Our Kino check encountered an unsupported-browser message for worker graphics or private storage; gameplay and licensing remain unverified.
Read the entry guide ↗Call of Duty: Black OpsBlack Ops — Kino der Toten
The BO1 host lists this map. Our Kino check encountered an unsupported-browser message for worker graphics or private storage; gameplay and licensing remain unverified.
Read the entry guide ↗Call of Duty: Black OpsBlack Ops II — Zombies
The candidate refers to the Zombies mode. We have not established whether the browser claim is a port, recreation, cloud stream, or footage.
Read the entry guide ↗Call of Duty: Black OpsModern Warfare 2
This entry refers to the 2009 release. Campaign, multiplayer, and browser availability have not been verified.
Read the entry guide ↗SkateSkate 3
No direct browser implementation has been confirmed. A stream or recreation should not be presented as the original console game.
Read the entry guide ↗Counter-StrikeCounter-Strike 1.6
A server-list host exists, but our request encountered a verification challenge. Actual gameplay, account requirements, and licensing are not confirmed.
Read the entry guide ↗Counter-StrikeCS Surf
Surf describes a movement mode rather than a standalone release. Engine, maps, browser controls, and direct host remain unknown.
Read the entry guide ↗HaloHalo: Combat Evolved
A browser claim does not identify the original game, a fan recreation, or streaming. We need a direct entry and an actual gameplay check.
Read the entry guide ↗Grand Theft AutoGrand Theft Auto V
No browser-native build has been verified. Any cloud service may require an account, payment, and a licensed copy.
Read the entry guide ↗Grand Theft AutoGTA: Vice City
The original game uses copyrighted assets. No authorized browser host or specific port has been confirmed for this candidate.
Read the entry guide ↗id Software classicsQuake
Open engine source does not make the original game assets free. We still need the intended host, asset requirements, and a runtime check.
Read the entry guide ↗id Software classicsQuake II
The browser build and game-data requirements are unknown. Engine licensing and game-content licensing must be checked separately.
Read the entry guide ↗id Software classicsQuake III Arena
The candidate quakejs.com host returned an invalid SSL error (526) during our check. No working Play link is published and gameplay remains unverified.
Read the entry guide ↗id Software classicsReturn to Castle Wolfenstein
No playable host has been confirmed. Source availability for an engine does not establish rights to the game's art, audio, or levels.
Read the entry guide ↗Other classicsHalf-Life
Valve documents the original GoldSrc game and native anniversary features. No browser project or host is identified; Steam Remote Play is not proof of a browser-native port.
Read the entry guide ↗Other classicsDiablo
Diabloweb offers a shareware option. The full game requires your own DIABDAT.MPQ from an original copy. The app responded, but gameplay was not verified.
Read the entry guide ↗Other classicsHedgewars
The WebWars author documents hotseat controls, no mobile controls, and unfinished multiplayer. Our host check failed; reported loading sizes conflict, so no fixed transfer total is verified.
Read the entry guide ↗Game-list FAQ
Where is the full Radiant Optimizer game list?
The current list is on this page. It contains 18 source entries from the supplied cover notes, grouped by series. The complete original post and its claimed 25-item list are still pending.
Can I play these browser games without downloading anything?
No installer is established for some documented browser projects, but a browser still transfers app code and assets. Diabloweb requires your own DIABDAT.MPQ for full-game content. Unidentified candidates cannot be promised to work without installation.
Do these browser games work on a school computer?
Compatibility and permission depend on the device, browser, project, and school policy. The BO1 check encountered a browser-feature error. We do not provide filter-bypass advice or assume managed devices permit gaming.
Are these the original games?
That is not established for every entry. QuakeJS and Diabloweb document their engine lineages; other candidates have no identified browser implementation. Original commercial assets, source-based engines, recreations, and cloud streams are separate things.
Do I need a Chromebook or is any browser fine?
Neither a Chromebook nor an arbitrary browser is guaranteed. Projects need particular graphics, storage, input, or network features. The WebWars author reports missing mobile controls and a Safari limitation; we have not tested every device.
How many games are on the list?
There are 18 source entries, not 18 distinct games: Moon and Kino der Toten are BO1 maps, and CS Surf is a community mode. We do not claim the incomplete notes supply all 25 items.