Download CIANO Alpha
Experimental PC build. Back up your mods and saves before upgrading.
PC only / Developer preview / Experimental alpha
More than a bus.
More than a bus.
A world to modify.
CIANO is an experimental sandbox based on Proton Bus Simulator, exploring advanced mods with C# scripting. Build interactive vehicles, maps and systems, and test ideas beyond traditional configuration files.
Windows PCC# scriptingCommunity modsNo login / No DRM
Get the alpha
Try the current developer preview and explore its modding capabilities. The alpha is offered for personal, non-commercial testing; future releases and terms may change.
Download samples
Starter examples for exploring the current mod structure and C# scripting API.
Stay connected
Find announcements, development updates and other creators in the community.
Join the group
Share your experiments, ask questions and discuss mods with other players and creators.
Follow the channel
Watch development previews and announcements from the project.
Modding documentation
Read the mod formats, naming conventions and exposed C# API in your language. The English documentation is the primary reference. Translations may lag behind the current alpha; API names and code identifiers remain in English.
A step toward Roxa
CIANO lets us experiment with existing content while we develop a new foundation for the future: our own Roxa Engine. This alpha focuses on land vehicles; broader vehicle types and larger ambitions belong to that future project. No particular feature or release date is guaranteed.