What (USA, EUR, JPN) does your base game file belong to?

For users managing their Nintendo Switch library via NSP (Nintendo Submission Package) files, this update is critical for compatibility with modern DLC. Mortal Kombat 11 Aftermath Update (Friendship Fatalities)

Beyond content drops, this particular version code fundamentally alters high-level competitive mechanics to bring the Nintendo Switch edition in close parity with mainstream home consoles. Feature Area Mechanics Adjusted in v1.0.17 Gameplay Impact

Are you installing the from scratch or applying this patch over an existing installation?

Noticeable compared to docked mode.

Ensure your Nintendo Switch is updated to a modern system firmware compatible with late-era game patches.

The update also included new stages, including the "Kronika's Keep" stage, where players could fight atop a sprawling clockwork fortress, surrounded by gears, pendulums, and other deadly mechanisms.

[Base Game NSP (v1.0)] ➔ [Aftermath DLC Component] ➔ [Update 1.0.17 NSP]