Spelunky Classic screenshot published by Derek Yu; reference image of the freeware original, not a capture of the HTML5 port or the HD remake.
Image credits ↗Derek Yu’s freeware Spelunky Classic, ported from GameMaker to HTML5 by Darius Kazemi.
Celeste
Climb Celeste Mountain in Webleste with your own FNA-edition files and optional Everest mods.
PlayYour game files requiredOriginal-game image
Credits
Celeste publisher screenshot. Original-game reference, not a capture of Webleste.
Celeste © Extremely OK Games / Maddy Makes Games. Publisher screenshot; independent editorial reference.
Source & attribution ↗View image ↗About this version
Webleste adapts Celeste (2018) and the Everest mod loader to browser WebAssembly. Import your own FNA installation, then patch it in the browser. The creator describes the port as near-complete; low-memory devices and Firefox can have problems.
- Project
- Webleste
- Original game
- Celeste
A mountain built around precise movement
Celeste follows Madeline up a mountain through compact platforming challenges. The attraction is learning a route closely enough to put a difficult sequence together: progress comes from understanding the room and refining the next attempt, while the story gives the climb a personal purpose.
This listing concerns the 2018 commercial game. Celeste Classic is a different, smaller PICO-8 game; importing files into Webleste is the route for an owner who wants the later game in a browser.
Celeste · official game and purchase informationWebleste · creator README
The FNA game and Everest in a browser
Webleste runs the FNA version of Celeste through WebAssembly and patches the player-provided game assembly. Its creator describes it as near-complete and documents support for Everest mods. That makes this project useful for someone who already owns Celeste and wants a browser-based route that keeps the connection to the actual game and its mod ecosystem.
Prepare the FNA installation before opening Play
Have the FNA edition installed first. The launcher says non-Windows editions use FNA and that Steam also offers an FNA version. Choose Copy local Celeste assets and select the installation directory containing Celeste.exe and Content. On macOS, the launcher points inside Celeste.app to Contents/Resources.
Keep the installation folder structure intact. An Everest installation can supply the original executable from its orig directory. After copying the files, let Webleste patch the assembly. For a browser that already has Webleste prepared, the File Browser can export a root archive that another installation can import.
Leave room for the browser runtime
The live launcher asks for roughly 1 GB of memory and warns about low-end devices. The README also flags possible Firefox issues. A desktop Chromium browser offers the clearest route through the documented file-management controls.
Before you play
Do I need the original game files?
Requires your own FNA edition of Celeste, including Celeste.exe and its Content directory. The import accepts Celeste.exe from an orig subfolder for an existing Everest installation.
Creator-reported · Project guideHow do I get started?
Open Webleste, choose Copy local Celeste assets, select the FNA installation folder and follow the patching step. An exported Webleste root-directory .tar archive is an alternative import.
- Install your own FNA edition of Celeste; the launcher says non-Windows builds use FNA and Steam also provides an FNA version.
- Open Webleste and choose Copy local Celeste assets.
- Select the installation folder containing Celeste.exe and Content; on macOS the launcher points to Celeste.app/Contents/Resources.
- Wait for the copy and patch process, then use the launcher Play action.
What is included in this version?
Creator-described near-complete port of Celeste (2018), with Everest mod support. This is separate from Celeste Classic for PICO-8.
Creator-reported · Project guideHow do saves work?
The launcher provides a File Browser with root-folder archive export and import. Exported Webleste archives can be imported on another prepared browser.
Creator-reported · Project guideWhat should I know before playing?
The live launcher budgets around 1 GB of memory and warns about low-end devices. Use a Chromium-based desktop browser for the documented file-management features.
Creator-reported · Project guide
Claw Web creator screenshot from level 1.
Image credits ↗Captain Claw’s 14 levels, with widescreen play, gamepad support and browser saves.
Original files requiredPlay
Jazz Jackrabbit original-game reference; not a capture of OpenJazz’s browser build.
Image credits ↗
Jazz² Resurrection creator preview, extracted as a still from a native window. It illustrates the project, not a capture of the browser build.
Image credits ↗A browser preview of the Jazz Jackrabbit 2 reimplementation with an episode import option.
Demo availablePlay