Isberg Labs 0.21.0
Game-making studio for Windows
Make a whole game in one app.
Draw the art, build the levels, write the music and code, then export a playable game. It all runs on your own computer.
14 days free, then CA$50 once. Windows 10 or 11. Read the documentation.
OVERGROWN, a retro FPS built entirely in Isberg Labs.
What's inside
Twenty editors, one shared project.
They all use the same assets, undo history and project file. Each one has its own chapter in the documentation.
Point at an editor to see what it does. Click to open it in the live desktop.
Try it live
A working miniature of the app, right here in your browser. Pick a tool on the left, drag the windows around, or press ▶ Play.
Overview
Features
Export a playable game to five platforms from Windows.
The engine and export templates are bundled, so nothing extra downloads. Export guide.
Export log
Choose a target, then press Export game.
Write game logic in the language you already know.
GDScript, C#, C/C++, JavaScript and Lua 5.4 all run locally, with nothing extra to install. Languages guide.
Start from one of ten game types.
Pick a type and a seed, then apply it to an editor. Every recipe can be undone. What each preset does.
One project file holds the whole studio.
Projects save as .isberg, and older .gbench projects still open. See projects and the file formats reference.
Try a PNG, a GLB or OBJ model, a TMX map, a MIDI or WAV file, or any Isberg document.
Standard formats too
PNG, APNG, OpenEXR, WAV, MP3, Ogg, FLAC, MIDI, FBX, Collada, glTF, GLB, PLY, STL, OBJ and TMX.
Drive every editor with 375 local MCP tools.
Connect an MCP client to read and write project files directly, or to operate the real editors through their own controls. MCP guide · every tool with its parameters.
Connect a client
Point your MCP client at mcp-config.json in the portable folder, or run MCP.cmd for stdio. The server id stays gamebench, so earlier client setups keep working.
{
"mcpServers": {
"gamebench": {
"command": "D:\\Isberg Labs 0.21\\Isberg Labs.exe",
"args": ["D:\\Isberg Labs 0.21\\resources\\app\\mcp\\server.js"],
"env": {
"ELECTRON_RUN_AS_NODE": "1",
"GAMEBENCH_WORKSPACE": "D:\\Isberg Labs 0.21\\Projects"
}
}
}
}
A typical session
workspace_commandslists an editor's real actions, settings, ranges and file controls.workspace_executesets named settings and runs actions through normal editor events.workspace_file_jobcollects exports; results stay as local paths.workspace_saveandstudio_project_statepersist the whole project.- Capture or inspect state to confirm the change.
The complete guide, from install to license.
30 chapters and 402 topics: every editor, export target, scripting language, file format and MCP tool, plus troubleshooting and the license rules.
Getting started
- Introduction 5 topics
- Install & first start 7 topics
- The workspace 13 topics
- Projects, assets & history 12 topics
- Game presets 10 topics
Art and worlds
- Pixel & animation 34 topics
- Textures & terrain 20 topics
- Sprite lighting 12 topics
- World builder 9 topics
- Tile modeler and Vertex painter 17 topics
3D, levels and shaders
- 3D scene & animation 20 topics
- Level & playtest 13 topics
- Formats & interchange 16 topics
- Shader graph and Shader materials 14 topics
- Avatar stage 15 topics
Audio and RPG
- Audio: music, sound and ambience 9 topics
- RPG Creator 16 topics
Code and shipping
- Game runtime (native engine) 15 topics
- Script workspace & languages 11 topics
- JavaScript editor 10 topics
- Exporting games 16 topics
Automation
- MCP server guide 13 topics
- MCP tool reference 16 topics
- Command line 6 topics
Reference
- File formats reference 16 topics
- Compatibility limits 15 topics
- Troubleshooting & FAQ 7 topics
- Release history 21 topics
License and legal
- License 10 topics
- Third-party software & notices 4 topics
Unzip the folder and start working.
It carries its own engine, compilers, .NET and codecs. Nothing is written to Program Files or the registry, and only license checks use the internet. What is in the folder.
Floating workspace
Move, overlap and dock editors, or drag one out to another monitor.
Safe saving
Automatic recovery copies are offered the next time you start.
No AI inside
No generative AI, models or AI-generated sample assets are included.
Download · Isberg Labs 0.21.0
Windows x64 · portable ZIP
Free for 14 days, then CA$50 once.
There is no installer. Unzip the folder and run it.
Isberg Labs 0.21 Portable.zip · released 4 November 2026
- Version
- 0.21.0
- Download
- 2.6 GB
- Unzipped
- 4.8 GB, 25,900 files
- Runs on
- Windows 10 or 11, x64
- Trial
- 14 days, every feature
- License
- CA$50 lifetime, one device at a time
- Support
- [email protected]
-
Unzip to a short path, like
C:\orD:\. Long paths such as Downloads can hit the Windows path limit. Avoid Program Files. -
Run
Isberg Labs.exe. Keep the folder together. If SmartScreen appears, choose More info, then Run anyway. - Start the free trial. Choose Start 14-day free trial in the license window. This step needs internet.
- Keep it for CA$50. Buy a license, paste the key in the license window and choose Activate.
Step by step, with upgrading, moving and troubleshooting: install guide · troubleshooting.
Check the download (SHA-256)
A 2.6 GB download can arrive damaged. Run this in PowerShell from the folder with the ZIP. If the Hash differs from the value here, delete the file and download it again.
Get-FileHash -Algorithm SHA256 ".\Isberg Labs 0.21 Portable.zip"
Exact size: 2,745,769,218 bytes.
Upgrading from an earlier version
- Extract 0.21 into its own folder and leave the old one where it is.
- Close the old version, then copy its Data folder into
Isberg Labs 0.21to keep your preferences and recovery copies. - Your
.isbergprojects open as before, and.gbenchprojects from Gamebench Studio still open. - Delete the old folder once you are happy with the new one.
- More: upgrading and moving to another PC.
System requirements
- Windows 10 or Windows 11, 64-bit (x64).
- About 7.5 GB free while you extract (ZIP plus folder), 4.8 GB once you delete the ZIP.
- Internet to start the trial or activate a license, then a check about once a day. It keeps working offline for up to 14 days between checks.
- Games export to Windows, macOS, Linux, Android and iOS. Building the iOS app needs a Mac with Xcode and Apple signing.
- Details: system requirements and what players need.
License details
- One payment, with every update in this release line.
- Works on one computer at a time. To move it, deactivate the old PC from its license window.
- Only activation and validation use the network. Projects, editors, exports and MCP work stay on your computer.
- Need help with a license? Email [email protected].
- Trial rules, moving to a new PC, offline use and every license message: license documentation.
MCP.cmd --license activate <key> MCP.cmd --license status MCP.cmd --license devices MCP.cmd --license deactivate [deviceId]