Horizon+ crossed over 1 million "active subscribers" in 2025, according to Meta.
If you're unaware, Horizon+ is Meta's $8/month game subscription service for Quest headset owners. Subscribers get access to a Games Catalog of around 50 major VR titles, as well as an Indie Catalog of around 50 smaller titles, for a total of around 100 games.
The Games Catalog has grown to include some of the biggest and best VR games of all time, including Asgard’s Wrath 2, Assassin’s Creed Nexus VR, Cubism, Demeo, Dungeons of Eternity, Eleven Table Tennis, Ghosts of Tabor, Job Simulator, Kingspray Graffiti, Les Mills Bodycombat, Maestro, Moss, Pistol Whip, Puzzling Places, Real VR Fishing, Red Matter 1 & 2, Synth Riders, The Climb 2, and The Thrill of the Fight.
Subscribers are also offered two specific games each month, pre-selected by Meta. Redeeming them lets you play them while you remain subscribed, or when you resubscribe in future.

All new Quest 3 and Quest 3S purchases come with 3 months of Horizon+. While these new users presumably aren't included in Meta's 1 million figure, we've reached out to the company to explicitly ask.
On a purely financial basis, assuming you're not fundamentally against the idea of a subscription, Horizon+ offers excellent value, and so reaching 1 million subscribers isn't particularly surprising.
Back in October, Meta opened enrollment in the Horizon+ Games Catalog and Indie Catalog to any interested developer, providing they meet the strict requirements.

Horizon+ represents a gradual but significant shift in the way many VR headset owners access premium titles since the launch of the original Oculus Quest almost seven years ago. It could have significant upsides for developers enrolled in the program, while bringing reduced spending for those not.
Apple too takes a similar approach on Vision Pro with the $7/month Apple Arcade subscription, but goes further, not offering the ability to outright buy many of the platform's top games.

