Browser projects with no separate installer
Find Radiant Optimizer Games projects without a separate installer. Check initial downloads, source-page verification and input notes before opening a project.
Published · By Radiant Optimizer Games
These entries have a project link and no identified requirement to provide separate game files. They still fetch browser resources, and their gameplay verification levels differ.
Browse projects
Kino and other map launchers, with a substantial first download.
Check notes · 2026-10-11
Desktop Chrome: Kino showed a 330.5 MB download, completed loading, then reported a pointer-lock restriction at Click to Start. Gameplay and other maps are unconfirmed.
Image source: vel.gg · recorded 2026-10-11.
View source: vel.gg ↗
Choose solo or a multiplayer room in a WebAssembly DOOM experiment.
Check notes · 2026-10-11
Desktop Chrome: Play Solo, menus and a rendered first level were reached; Enter and arrow-key input were exercised. Multiplayer, saving and touch controls are untested.
Image source: silentspacemarine.com · recorded 2026-10-11.
View source: silentspacemarine.com ↗
A browser QuakeWorld client with a player-name entry screen.
Check notes · 2026-10-11
The project page loaded and Play opened the client. Our session remained on the loading screen.
Image source: q1.pieter.com · recorded 2026-10-11.
Project artwork identifies the game; it is not a completed browser-game session.
Quake artwork: id Software. Browser project: Pieter.
View source: q1.pieter.com ↗
Quake II
A separate Quake II multiplayer browser project from Pieter.
Check notes · 2026-10-11
The project landing page responded. Joining a match has not been tested.
Image source: q2.pieter.com · recorded 2026-10-11.
Quake II artwork: id Software. Browser project: Pieter.
View source: q2.pieter.com ↗
Quake III
An arena shooter browser project with its own launch page.
Check notes · 2026-10-11
The landing page responded. Matchmaking, controls and mobile play remain untested.
Image source: q3.pieter.com · recorded 2026-10-11.
A rendered browser scene was captured for this image. Controls, match reliability and mobile support are not established by the image.
Quake III artwork: id Software. Browser project: Pieter.
View source: q3.pieter.com ↗
PrinceJS
A browser reconstruction of the classic Prince of Persia platformer.
Check notes · 2026-10-11
The source page responded. We have not verified all levels, saving or phone controls.
Image source: princejs.com · recorded 2026-10-11.
View source: princejs.com ↗
OpenTTD Web
A browser build of the transport-management game OpenTTD.
Check notes · 2026-10-11
The web build page responded. Save persistence and multiplayer are not yet tested.
Image source: openttd-web.pages.dev · recorded 2026-10-11.
The browser menu and animated background were rendered. This image does not establish saving or multiplayer behavior.
OpenTTD contributors and the OpenTTD Web project.
View source: openttd-web.pages.dev ↗
Freeciv Web · WebCiv
WebCiv's experimental Freeciv Web deployment, with a single-player setup screen.
Check notes · 2026-10-11
Desktop Chrome reached WebCiv's Freeciv-web client and its player-name prompt, with Game, Load, Nation and Start controls. This is an alternative operator to the supplied play.freeciv.org address, which still reported a certificate hostname mismatch. No name was submitted or game started; map play, saving and controls remain untested.
Image source: github.com · recorded 2026-10-11.
Upstream repository reference image, not our capture of WebCiv's experimental deployment. The old play.freeciv.org address remains blocked; the listing now links to WebCiv.
Freeciv-web project contributors; reference screenshot published in the project README.
View source: webciv.org ↗
2048
Slide and combine numbered tiles in Gabriele Cirulli’s 2048.
Check notes · 2026-10-11
The original URL redirected to play2048.co. After closing the tutorial, arrow-key input changed the visible score from 0 to 4. Touch controls and persistence are untested.
Image source: play2048.co · recorded 2026-10-11.
View source: gabrielecirulli.github.io ↗
Little Alchemy 2
Combine items and discover new elements on the project’s website.
Check notes · 2026-10-11
The official page responded. Progress saving, touch interaction and content access are untested.
Image source: littlealchemy2.com · recorded 2026-10-11.
Little Alchemy 2 project; published social-preview image.
View source: littlealchemy2.com ↗
Krunker
A multiplayer FPS on its own browser-game website.
Check notes · 2026-10-11
The official landing page responded. A live match and sign-in requirements were not tested.
Image source: krunker.io · recorded 2026-10-11.
Krunker / FRVR; published social-preview artwork.
View source: krunker.io ↗
Agar.io
A cell-growth multiplayer game whose guest lobby offers a Play button.
Check notes · 2026-10-11
The raw HTTPS request returned 403, but desktop Chrome opened the guest lobby with an enabled Play button and instructions for mouse movement, Space to split and W to eject mass. No match was joined; arena loading, multiplayer and input remain untested.
Image source: agar.io · recorded 2026-10-11.
Official project artwork, not our multiplayer-test screenshot. A browser follow-up reached the guest lobby despite the raw request's access restriction.
Agar.io project; published social-preview image.
View source: agar.io ↗
Slither.io
A snake-growth arena on the original Slither.io site.
Check notes · 2026-10-11
The page responded. Connecting to a server and mobile controls have not been tested.
Image source: slither.io · recorded 2026-10-11.
Slither.io project; published social-preview artwork.
View source: slither.io ↗
Shell Shockers
An egg-themed online shooter on the Blue Wizard project website.
Check notes · 2026-10-11
The landing page responded. We have not tested rooms, accounts or gamepad support.
Image source: shellshock.io · recorded 2026-10-11.
Blue Wizard Digital / Shell Shockers; published social-preview artwork.
View source: shellshock.io ↗
Minecraft Classic
Mojang’s browser version of Minecraft Classic, distinct from modern Minecraft.
Check notes · 2026-10-11
The official page responded. World loading, inviting friends and touch controls remain untested.
Image source: classic.minecraft.net · recorded 2026-10-11.
This screenshot records a rendered browser world. It does not establish building controls, inviting friends or mobile gameplay.
Minecraft artwork: Mojang / Microsoft.
View source: classic.minecraft.net ↗
TETR.IO
A falling-block game with solo and online modes on its project site.
Check notes · 2026-10-11
The project page responded. A guest session, online match and save behavior are untested.
Image source: tetr.io · recorded 2026-10-11.
TETR.IO project; published social-preview artwork.
View source: tetr.io ↗
ZType
A typing shooter where words become targets.
Check notes · 2026-10-11
The project page responded. Keyboard gameplay and mobile support have not been verified.
Image source: zty.pe · recorded 2026-10-11.
Phoboslab / ZType; published social-preview artwork.
View source: zty.pe ↗
CS Surf · Surfd
Source-style surf courses with solo practice; this is not the full Counter-Strike game.
Check notes · 2026-10-11
The Surfd page exposes course selection, solo play and keyboard/mouse bindings. It lists R to restart and Esc for the menu. We inspected the launcher; movement, leaderboard submissions and multiplayer were not tested.
Image source: surfd.net · recorded 2026-10-11.
The project's course preview identifies this surf project; it does not demonstrate our own completed run.
Surfd / @0yield; surf_boreas by Syncronyze.
View source: surfd.net ↗
Diablo Web
Try the limited demo without files; the full game needs your own DIABDAT.MPQ.
Check notes · 2026-10-11
The page offers a free limited demo and a separate DIABDAT.MPQ import for owners of Diablo. Play Free Demo was attempted in desktop Chrome, but we did not establish a playable level. Saves are described as browser-local; online multiplayer is experimental and untested.
Image source: johnimril.github.io · recorded 2026-10-11.
No-files applies to the limited demo only. This is project artwork, not a gameplay check.
Diablo artwork: Blizzard Entertainment. Browser project: John Imril / DiabloWeb.
View source: johnimril.github.io ↗
PES 6 Web Online
A PSP-based browser project with a language menu and an optional lighter launch.
Check notes · 2026-10-11
Desktop Chrome's lighter, no-commentary launch reached the PSP language-selection screen. The page lists WebGL 2, keyboard, gamepad and touch controls, and an optional full download of about 300 MB. We did not verify a match, keyboard response, online play or saved-data import.
Image source: pes6.optijuegos.net · recorded 2026-10-11.
Recorded menu preview; this is not a match screenshot. Gamepad and phone input remain untested.
Pro Evolution Soccer artwork: Konami. Browser project: OptiProjects.
View source: pes6.optijuegos.net ↗
Moon · BO1 Zombies
A dedicated Moon map launcher on vel.gg, listed separately from the BO1 map hub.
Check notes · 2026-10-11
The current vel.gg Moon route responded with a Moon launcher. The earlier supplied Moon address redirected to an unrelated site, so it is not used as a launch link. Moon's resource download, level and controls were not tested; the separate Kino test cannot establish Moon's playability.
Image source: vel.gg · recorded 2026-10-11.
Moon map artwork supplied by the current project. This map is not a separate full Black Ops game.
Call of Duty: Black Ops artwork: Activision / Treyarch. Browser map project: vel.gg.
View source: vel.gg ↗
Kino der Toten · BO1 Zombies
Go directly to the Kino map launcher, with the same loading limits recorded for the BO1 hub.
Check notes · 2026-10-11
The current vel.gg Kino route identifies the map. In our BO1-hub desktop check, Kino completed a reported 330.5 MB download, then hit a pointer-lock restriction at Click to Start. This is the same map result, not a second successful test. The older supplied Kino address redirected to an unrelated site and is not used.
Image source: vel.gg · recorded 2026-10-11.
Map loading artwork. Listing a direct map route does not add a separate full game.
Call of Duty: Black Ops artwork: Activision / Treyarch. Browser map project: vel.gg.
View source: vel.gg ↗
Skate × Rust
A skating experiment at an alternative host, with a visible keyboard control list.
Check notes · 2026-10-11
The originally supplied global-terror.net address displayed an unrelated store. This alternative host identifies Skate × Rust, shows Ready to Load and lists W to push, A/D to steer, S to brake and R to reset. We inspected this host rather than attributing it to the original address; loading and skating controls were not tested.
Image source: global-terror-skate-rust.fvc3less.workers.dev · recorded 2026-10-11.
This is an alternative project address and launcher image, not proof of the old domain's operation.
Skate × Rust browser project; logo from the alternative host.
View source: global-terror-skate-rust.fvc3less.workers.dev ↗
Return to Castle Wolfenstein
The iortcw multiplayer browser project; its page reports an initial download of about 380 MB.
Check notes · 2026-10-11
The source page identifies iortcw compiled to WebAssembly and multiplayer on mp_beach. It recommends desktop Chrome and reports an initial download of about 380 MB, cached afterwards. We checked the landing page only; joining a server, controls and caching were not tested. A full single-player campaign is not established.
Image source: rtcw.pieter.com · recorded 2026-10-11.
Project multiplayer preview; this is not our own completed multiplayer session.
Return to Castle Wolfenstein artwork: id Software / Activision / Bethesda. Browser project: Pieter.
View source: rtcw.pieter.com ↗
Urban Terror
Pieter's ioUrbanTerror multiplayer project; the UT subdomain refers to Urban Terror here.
Check notes · 2026-10-11
The primary page explicitly identifies Urban Terror by FrozenSand, powered by ioUrbanTerror in WebAssembly. It lists multiplayer maps including casa and turnpike, with game data downloaded and cached by the browser. We inspected the page only; joining a match, input and caching were not tested.
Image source: ut.pieter.com · recorded 2026-10-11.
This is Urban Terror, not Unreal Tournament. Project artwork is not our own multiplayer-test screenshot.
Urban Terror artwork: FrozenSand. Browser project: Pieter; unofficial and not endorsed by FrozenSand or id Software.
View source: ut.pieter.com ↗
Slow Roads
An endless driving web original; our launch attempt showed a hardware-acceleration warning.
Check notes · 2026-10-11
Desktop Chrome opened Slow Roads v2.4.2 and its Begin workflow. The check encountered a LOW PERFORMANCE DETECTED warning advising hardware acceleration and a browser restart. Driving input and frame rate were not established. This is an environment-specific result, not a universal performance claim.
Image source: slowroads.io · recorded 2026-10-11.
Project artwork identifies the game. Our own launch attempt remained inconclusive.
Slow Roads / Topograph; unmodified project social-preview image.
View source: slowroads.io ↗
Astray
A WebGL maze game: guide a ball through increasingly complex corridors.
Check notes · 2026-10-11
Desktop Chrome rendered Level 1 and displayed the I-key instruction prompt. The primary repository identifies a Three.js and Box2D maze game. Movement, level completion and touch controls were not tested.
Image source: wwwtyro.github.io · recorded 2026-10-11.
Browser capture from the recorded check. The image alone does not establish working controls or completion.
Astray / wwwtyro; original project distributed under the Unlicense.
View source: wwwtyro.github.io ↗
Underrun
A compact isometric shooter with a systems-reboot premise and keyboard movement.
Check notes · 2026-10-11
Desktop Chrome showed the deployment prompt and its WASD/arrow-key movement and mouse-shooting instructions. Clicking deployment rendered the starting room. Movement, shooting, later areas and completion were not tested.
Image source: phoboslab.org · recorded 2026-10-11.
Browser capture from the recorded check. The image alone does not establish working controls or completion.
Underrun / Dominic Szablewski (PhobosLab); MIT license. Sonant-X music library uses the zlib license.
View source: phoboslab.org ↗
HexGL
A futuristic WebGL racing game with a visible desktop keyboard launch option.
Check notes · 2026-10-11
The raw request encountered a TLS connection failure, while desktop Chrome opened the menu. START and the following continue prompt loaded the ship, track and GET READY screen. Driving controls, race completion and other platforms were not tested.
Image source: hexgl.bkcore.com · recorded 2026-10-11.
Browser capture from the recorded check. The image alone does not establish working controls or completion.
HexGL / BKcore and contributors; MIT license for code and resources unless a file specifies otherwise.
View source: hexgl.bkcore.com ↗
Sandspiel
A falling-sand sandbox with water, fire, plants and other selectable materials.
Check notes · 2026-10-11
Desktop Chrome displayed the simulation canvases and material palette, including sand, water, plant and fire. No materials were painted, saved or shared; touch and account features were not tested.
Image source: github.com · recorded 2026-10-11.
Upstream project artwork. Our own check reached the palette; the pictured sandbox scene was not created in that session.
Sandspiel / Max Bittker and contributors; upstream README image, MIT license.
View source: sandspiel.club ↗
Clumsy Bird
A melonJS bird-and-pipes arcade game with Space or mouse-start instructions.
Check notes · 2026-10-11
Desktop Chrome rendered the title screen. It instructs players to press Space or the left mouse button to start, and M to mute sound. A run, score changes and touch controls were not tested.
Image source: ellisonleao.github.io · recorded 2026-10-11.
Browser capture from the recorded check. The image alone does not establish working controls or completion.
Clumsy Bird / Ellison Leão and contributors; original project distributed under GPL-3.0.
View source: ellisonleao.github.io ↗
A Dark Room
A text adventure that begins with a cold room and a single light-fire action.
Check notes · 2026-10-11
Desktop Chrome: after disabling audio, clicking light fire changed the heading from A Dark Room to A Firelit Room and the log to the fire is burning. This confirms that initial button interaction only; later progression, saves, audio and mobile play remain untested.
Image source: adarkroom.doublespeakgames.com · recorded 2026-10-11.
Browser capture from the recorded check. The image alone does not establish working controls or completion.
A Dark Room / doublespeak games and contributors; original project distributed under MPL-2.0.
View source: adarkroom.doublespeakgames.com ↗
Breakout · LittleJS
The LittleJS engine's brick-breaking example, with a browser-rendered start screen.
Check notes · 2026-10-11
Desktop Chrome rendered the colored brick field, paddle, Score: 0 and Click to Play prompt. A round was not started, so paddle response, collision behavior and score progression remain untested.
Image source: killedbyapixel.github.io · recorded 2026-10-11.
Browser capture from the recorded check. The image alone does not establish working controls or completion.
LittleJS Breakout / Frank Force and contributors; MIT license.
View source: killedbyapixel.github.io ↗Source checks and control tests are different. Read each project’s notes before opening. Images are labeled by type; a preview does not confirm working controls.
No installer is not zero download
An installed game usually places an application on your device. A browser project loads its program and resources inside the tab, so it can avoid that installation step while still transferring a substantial amount of data. The BO1 Kino check, for example, showed a 330.5 MB initial download prompt. This collection is useful when you want to avoid preparing a separate copy of a game's data; it is not a bandwidth-saving guarantee.
What qualifies for this shortlist
Entries share a no-game-files setup label and a confirmed outbound project address from the source check. Projects with an unresolved certificate or access check are left out here, though their records remain in the full directory's status archive. The distinction keeps a launch shortlist useful without hiding research gaps. Games needing personal data files belong to another preparation workflow, explained in their detailed entry. Account requirements, touch support and multiplayer availability are separate from installer requirements.
Read the check note before opening
A landing page response is a lower evidence level than an observed control test. Open the check note on a card to see which browser stage was reached. A project that only responded to an HTTPS request can still fail while downloading assets, creating a graphics context or contacting a multiplayer server. We do not upgrade that evidence because another directory uses a Play label. Our policy explains the recorded levels and what they do not promise.
Pick a project suited to your input
Desktop shooters generally need a keyboard and mouse, but the listed requirement should be checked against the particular project. A phone can display a launch page even when it cannot operate the game. In this edition, desktop interaction tests do not count as phone tests. If you are checking whether keyboard input works, 2048 provides a comparatively simple interaction; its observed score change is recorded on its card. We have not used that desktop result to claim touch compatibility.
Prepare for the first load
Use the startup guide for a short preflight routine. Keep the original project tab open while progress is advancing. If a canvas stays blank, use troubleshooting to distinguish stalled resources from input or graphics issues. Browsers may cache some resources, but a faster later visit is not guaranteed. Returning to the directory lets you choose another project with the same genre preference and a different check status.
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