We just reviewed our AdColony implementation. All is working well and is according to the official AdColony documentation. The error you are seeing is caused by their SDK and only shows up in Unity Editor. take a look at the following code: As you can see, that _sharedInstance will always be null in Unity Editor and their SDK throws an error if that is null. So you can ignore that error, all will work well in build. About sharing that implementation with us, is up to you. We do not want to assume credit for your work. You can write us an e-mail at firstname.lastname@example.org and we can discuss more details about this, and how to make it to be better for all our users and also for you.