dll cross platform?

It depends on what kind of dll. If it's a pure managed code library (`100% .NET / Mono`) you shouldn't place it in plugins, just in the assets folder since it's a normal assembly like all your other scripts.

If it's a native code plugin (which have to be placed into the plugins folder), like the name says it contains native code from a specific platform. Usually they can't be used crossplatform. A lot such plugins have different versions for different platforms so you have to use the correct plugin for your platform.

Native code libraries are called:

• On windows also .DLL

• On mac OS .so

• Don't know for other platforms ;)

edit

Be careful with .NET / Mono assemblies. Some are mixed-code assemblies that are .NET assemblies in it's nature, but they also include native code / native code dependencies which propably won't run on other platforms.