2010's Xbox 360 game Halo: Reach, the final entry in the series developed by franchise creator Bungie, could come to Xbox One someday. That's according to top Xbox boss Phil Spencer, who said recently to a fan on Twitter that, "I'd like to see it come via backwards compatibility."

The user asked if Reach might be added to Halo: The Master Chief Collection (like Halo 3: ODST was) or if it might get its own "Anniversary" edition similar to Halo: Combat Evolved and Halo 2. But Spencer didn't respond to these points, instead suggesting it's more likely to come via backwards compatibility.

A prequel to the first Halo game, Reach--released five years ago this month--was celebrated by critics across the board, and earned a 9.5/10 score from GameSpot.

Reach was not included in Halo: The Master Chief Collection, in part because it does not star Master Chief, but Microsoft is well aware that fans are clamoring for it.

"I think enough people have asked about it that we are thinking about it," executive producer Dan Ayoub said back in 2014 about possibly bringing ODST and Reach to Xbox One some day.

ODST, which also does not star Master Chief, was released as DLC for Halo: The Master Chief Collection in May 2015 as part of Microsoft's effort to make up for the game's rocky launch.

In other Xbox One backwards compatibility news, Spencer teases that Microsoft is "really focused" on launching the feature publicly in November. "I've seen the lineup of games coming to launch and in the months ahead; good list," he said. The feature is currently available only to Preview Program members.

For more on Xbox One backwards compatibility, check out this roundup of all the confirmed games to date.