I was developing Unity projects using the C#, C# Dev Kit, and Unity extensions. After C# and C# Dev Kit switched to Anysphere C#, the Unity extension no longer works with the new language server. Please add support for Anysphere C# in the Unity extension.

I’m pinging @ravirahman so he can sort this out.

Hi, unfortunately the official unity extension is closed-source so it is not supported in Cursor. I would try using unity-tools.

Thank you for the quick response. Does this mean that it is currently impossible to debug Unity projects in Cursor? As far as I know, unity-tools depends on Debugger For Unity, which itself relies on the old C# extension. Since the old C# extension is no longer available, unity-tools cannot provi…

We’ll need to look into this further, to see what would be required to support Unity. Unfortunately, I do not have an estimate yet for when we will have a unity extension available.

Thank you for your response. As a Unity developer, it is unfortunate that the Official Unity Extension cannot be used. For now, I have been able to debug Unity at runtime by using an extension called dotrush. For other users facing the same issue, I would like to share this Reddit link: …

Using the Anysphere C# and DotRush extensions together is impressive. This new combination is much lighter and more stable than using Microsoft’s C# and Unity extensions together, and it offers additional advantages. In the Watch panel, you can view the values of outer stack variables when a breakp…

[image] I tried using Anysphere C# and DotRush together but got conflict notification from DotRush. Wonder if it’s necessary to remove Anysphere C# or can leave it there?

we need Unity Debugger in Cursor.

this was recently working and suddenly stopped working for me today. Huge hit to productivity

Hi all – thank you for sharing these issues. I tried using Anysphere C# and DotRush together but got conflict notification from DotRush. Wonder if it’s necessary to remove Anysphere C# or can leave it there? @centhoang – does it work if you uninstall the Anysphere C#? As you noted, that notifica…

Unity Extension Does Not Support Anysphere C# Language Server

Ideas Feature Requests

centhoang (Cent) June 4, 2025, 7:36am 25

@coldlogic I tried re-install them in your order, but after I re-open the workspace it got the noti again. These 3 extensions are the only C#-related on my side right now

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Unity Extension Does Not Support Anysphere C# Language Server

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