Amazon planned to add more channels to Luna, offering access to games from more publishers.
"We're proud to be working alongside Amazon on Luna, utilizing the power of cloud gaming to provide our players with another way to access our games, wherever they are," said Ubisoft senior vice president of partnerships Chris Early.
"Ubisoft's channel on Luna will allow players to experience our new releases along with many of our catalog games, while enjoying player-friendly features like Alexa and Twitch integrations."
Amazon Luna Controller looks similar to Microsoft's Xbox controller
Streaming of gameplay at Amazon's popular Twitch platform will be available at Luna, according to the Seattle-based internet colossus.
Watching video games being played as a spectator sport was booming even before the pandemic gave people hunkered down at home more time and interest in tuning into such entertainment.
Luna is built on Amazon's muscular AWS infrastructure for hosting computing power in the cloud, playing into its strength as a leading force in that market.
"As new features and content are added for Luna customers, the backend tech that's driving it all will also be frequently refreshed," Amazon promised.
Locking in gamers
The move makes sense for Amazon, which already sells video games at its leading e-commerce platform; has a community of gamers at Twitch, and streams films, television shows and music on its popular Prime platform.
"Amazon recognises that part of the game business is moving to a subscription model," technology analyst Rob Enderle of Enderle Group told AFP.
"Like they've done with movies and music, Amazon wants part of that."
Starting with a small portfolio of games during a restricted preview period should give Amazon time to work on unique aspects of the service such as avoiding lags in graphics, referred to as latency, that tend to infuriate players, according to the analyst.
"Amazon is not really a gaming company, so they may not have an idea of what gamers want and will tolerate," Enderle said.
"They are going to be on a learning path."
Luna also promises to help Amazon stay close to gamers, who will then buy displays, headsets, computers or other gear from the e-commerce colossus.
The service may also provide opportunities for Amazon to make money from related ads, or even from in-game transactions the way Apple gets a percentage of purchases in games at its App Store, according to Enderle.
"The goal is to grab and then hold an audience of gamers," Enderle said.
"Basically, you lock in any retail services associated with gaming."