Xbox Game Pass

Xbox Game Pass is a subscription-based service for Xbox One, PC (through the Microsoft Store), and Xbox Series X|S that allows players to have access to most of Microsoft's first party library and many other titles. Game Pass for Xbox One was released on June 1, 2017 for $9.99/month USD.

An upgrade to Game Pass, dubbed Xbox Game Pass Ultimate, was announced at E3 2019.

Game Pass Ultimate includes Game Pass for Console, Game Pass for PC, and Xbox LIVE Gold for $14.99/month USD.

During Xbox Games Showcase 2020, Microsoft announced that Project X-Cloud (now known as Xbox Cloud Gaming), Microsoft's new game streaming platform, would be included with Game Pass Ultimate at launch at no extra cost.

Halo games on Xbox Game Pass
Xbox Game Pass includes the following Halo titles:
 * Halo 5: Guardians (Console-only)
 * Halo Wars: Definitive Edition (Console and PC)
 * Halo Wars 2 (Console and PC)
 * Halo: The Master Chief Collection (Console and PC, PC through Microsoft Store-only)
 * Halo Infinite (Console and PC)
 * Halo: Spartan Assault (Console, mobile and PC)
 * Halo: Spartan Strike (Mobile and PC)