Why is Amazon doing it? According to Marco Argenti, vice president of technology for AWS, it’s reacting to a desire from companies that want to try out AR and VR for everything from training to virtual concierge services but don’t have the technical capabilities to make, say, a VR app from scratch.

Argenti thinks simplifying the creation process (he believes that anybody who can make a Web page should be able to make a VR or AR experience) could lead to more stuff to do in AR and VR, which in turn may help the technologies spread.

So far, companies trying out Sumerian include medical-device maker Thermo Fisher Scientific, location-data startup Mapbox, and Nokia. If Sumerian catches on with businesses, it could lead to a range of both internal and consumer-geared apps. A factory operator might, for instance, use Sumerian to build a VR app that trains employees on new safety procedures. Or perhaps a real estate company will use it for virtual home tours.

Of course, Sumerian is also a potential moneymaker for Amazon. Rather than charging a fee to use Sumerian itself, Amazon charges users for services such as hosting and serving up VR and AR experiences to users.

With costs around six cents per gigabyte per month for Sumerian scene storage and 38 cents per gigabyte per month for scene traffic, it might sound like chump change right now, given the small market for AR and VR. But if the market continues to grow, it could eventually add up to a lot more for Amazon.