Frequently Asked Questions

Q: What is RAIN?

A: RAIN is a modular, extensible, free AI Engine that encompasses every element needed to create characters in digital entertainment. Click here for more information about our licencing agreement or RAIN feature list.

Q: What’s the difference between RAIN and RAIN{indie}?

A: RAIN is an upgraded version of RAIN{indie}. More features, easier to use, still free. RAIN is offered on the Unity Asset Store, Directly from Rival Theory, as well as in the mod tool FPS Control.

Q: Is RAIN{indie} still supported?

A: Yes. We will continue to offer support through email, documentation, and a separate forums for RAIN{indie}. There are no planned patches or updates for RAIN{indie}. For the upgrade path from RAIN{indie} to RAIN please click here. Email support@rivaltheory.com with any questions, or issues.

Q: What are the benefits of switching to RAIN?

A: More than we can list in this paragraph. Check out RAIN’s complete feature list here.

Q: Is RAIN the only technology you have for creating AI?

A: If you are using Unity 4.0 or above, RAIN is the premier solution for all triple-A studios, students, and hobbyists. Sentio is our technology platform that allows living characters to persist over time, existing outside of a single game or application and seamlessly moving between apps and devices at runtime.

Q: Should I use Sentio instead of RAIN?

A: For the majority of developers that are looking for a solution to solve traditional game AI problems, such as pathfinding, behavior, obstacle avoidance etc. RAIN is the right choice. For organizations that are developing games, applications, interactive toys, and films that require unique, believable and intelligent personalities with learning, emotion, and memory, Sentio is the solution. Sentio is a completely different approach for creating AI in entertainment and is only currently available to select partners.

Q: Are you available for consulting and development?

A: Yes. Rival Theory has expert industry experience creating advanced AI for games, media, and film. We work with clients using both RAIN as well as our professional Sentio platform. Please contact us directly for more information. Jester[at]rivaltheory[dot]com.

Q: Does RAIN work with both the free and Pro versions of Unity?

A: Yes.

Q: Does RAIN work for the iOS, Mac, Web player, Android, Windows, and other Unity Platforms?

A: Yes. RAIN was designed to work on all Unity supported platforms.

Q: Does RAIN software work for the Mac version of Unity editor?

A: Yes.

Q: I am an AI designer, why would I need RAIN?

A: RAIN allows you, the AI designer, to focus on designing behavior instead of building AI framework. RAIN will do the majority of the heavy lifting for you.

Q: What kind of support do you offer?

A: You can check out our Community Portal for help, download sample projects, consult our documentation, and report bugs. We are serious about supporting your efforts, updating the software to add features and correct problems, and generally doing what we can to make RAIN work for you. Just let us know how we can help. Our partners the Tornado Twins also offer community support for RAIN as a part of FPS Control.

Q: How often do you release updates?

A: As critical issues arise, or features are added, we update in a timely and appropriate manner. Just let us know how we can help. Click here to submit a bug.

Q: Are updates free?

A: Yes! All 2.x updates are free and accessible via the Unity Asset Store or our website. We will have corresponding updates to documentation and tutorials to make learning RAIN as easy as possible. You can register to be automatically notified of updates by signing up here.

Q: Where do I report bugs?

A: Reporting bugs is easy with our handy Bug Report Forum.