Halo Games on Xbox 360: Complete List

Yes, multiple Halo titles are on Xbox 360:

• Halo 3 (2007)
• Halo 3: ODST (2009)
• Halo: Reach (2010)
• Halo: Combat Evolved Anniversary (2011) – Remaster of CE
• Halo 4 (2012)
• Halo 2 / Halo 2: Anniversary – Via backward compatibility (original Xbox discs or digital)

Not on Xbox 360

• Halo Online – Cancelled PC-only free-to-play (Russia beta only)
• Halo 5, Infinite, Wars 2 – Xbox One/Series/PC only
• Halo: The Master Chief Collection – Xbox One/PC only (contains CE, 2, 3, ODST, 4, Reach remasters)

The 360 library is the "Bungie era" + Halo 4 (343i debut). All are playable offline; online matchmaking servers are still active but low population. MCC on PC is the best way to experience them today.