Does Xbox Have System Link for Local Multiplayer?

No. Modern Xbox consoles (One, Series X/S) do not support System Link (direct LAN play between consoles without internet). This feature existed on Original Xbox and Xbox 360.

Current Local Multiplayer Options

• Split-Screen / Shared Screen: Supported per-game (e.g., Halo Infinite, Minecraft, Fortnite, CoD).
• LAN Party (Internet Required): Connect consoles to same router, join via Xbox Live party/invites. Requires Xbox Live Gold/Game Pass Ultimate for each account.
• Xbox Cloud Gaming: Stream to multiple devices on same network.

Legacy: Xbox 360 System Link

Worked via Ethernet crossover cable or switch. Games: Halo 3, Reach, 4, Gears 1-3, CoD 4-MW3. Required same game version, no internet. Not forward-compatible.

For true offline LAN today, use PC (Steam/LAN) or Nintendo Switch (Local Wireless on supported titles like MK8D, Splatoon 3, Smash Ultimate).