Opsive, LLC is a small indie startup founded by Justin Mosiman and Sarah Watson. Justin and Sarah started to develop iOS games in 2008 and released two titles. They then switched to developing tools for the Unity Asset Store and have been doing that full time since 2013. They first released Behavior Designer, a behavior tree tool designed for everyone. The Third Person Controller was then released and is the ultimate framework for any third person game. In 2016 they acquired UFPS and are currently developing UFPS 2. They are also developing addon assets for Behavior Designer, Third Person Controller, and UFPS.

Opsive has a Twitter account and a Facebook page. Justin can be reached at justin@opsive.com, or @justinmosiman. Sarah can be reached at sarah@opsive.com, or @sarahhwatsonn.