The Sinking City 2 Wiki
major spoilersReviewed 8/21/2026

The Sinking City 2 Bosses

Direct answer

Prepare for Shoggoth and Slither Prime, the two formal boss fights, without mislabeling ordinary monsters or tougher elite encounters as bosses.

The campaign has two formal bosses in the checked walkthrough evidence:

  1. Shoggoth — an arena-mechanic fight built around three devices and exposed eyes.
  2. Slither Prime — the final fight, built around head damage, summoned enemies, and movement.

What is not on this list

Deep Ones, Grindmaws, Nightmares, Acheronians, and other ordinary or elite enemies can anchor dangerous encounters, but they are not promoted to formal boss status here. The distinction keeps this hub focused on fights with their own named arena loop.

Return to the guides hub or review weapons before committing to either arena.

Sources

Reviewed: 8/21/2026

Related guides

Guide index

How to Beat Shoggoth

Restock before the arena, activate all three strange devices, damage Shoggoth's exposed eyes, and repeat the full cycle while its pressure accelerates.

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Guide index

How to Beat Slither Prime

Restock before the final arena, target Slither Prime's glowing head, clear summoned enemies, and keep open movement lanes for every incoming attack.

Open guide
Guide index

The Sinking City 2 Guides

Choose a published walkthrough, puzzle solution, or optional investigation guide without browsing unfinished or unsupported pages.

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