The Sinking City 2 walkthrough: Step-by-Step Arkham Guide - Guide

The Sinking City 2 walkthrough: Step-by-Step Arkham Guide

Follow this The Sinking City 2 walkthrough for the Library Annex route, combat advice, puzzles, collectibles, Talents, and survival tips.

2026-08-18
The Sinking City 2 Wiki Team
Quick Guide
  • The Sinking City 2 walkthrough follows Calvin Raftery from the evacuation route to the Library Annex.
  • Main objective: Find the resurrection ritual and secure a translation for the ritual book.
  • Combat priority: Search for ammunition, use the environment, and avoid wasting shots on durable enemies.
  • Investigation focus: Connect clues, inspect documents, and solve optional area mysteries for loot or Talent points.
  • Save strategy: Use Safe Rooms and conch record players before risky exploration or major encounters.

The Sinking City 2 Walkthrough: Opening Route

The opening route begins in a collapsing Arkham during an emergency evacuation. Calvin Raftery is trying to recover Faye Bennett, who remains in a coma. His immediate goal is to reach the Miskatonic University Library Annex, retrieve Recitations of the Tenebrous Soul, and use its resurrection ritual with the dagger Otacondar, the Blade of Ulthar.

The safest approach is to treat every area as both a combat zone and an investigation site. Flood damage creates unstable paths, while the Slither has spread through the city and can animate the dead. Search side rooms before moving onward, but do not spend all your ammunition clearing threats that can be bypassed.

Video Highlights:

  • Arkham’s evacuation sequence and the route toward the university
  • The first encounters with Slither creatures and Slither puppets
  • Power restoration, gate access, and environmental navigation
  • The Library Annex approach and the first major investigation
  • Kohonta’s translation request involving the Devil’s Reef Hotel
Route StagePrimary GoalKey RiskRecommended Action
Evacuation zoneLeave the starting areaBlocked passagewaysFollow the boat route and inspect marked symbols
Flooded streetsReach the university districtSlither attacksMove carefully and preserve ammunition
Gate and power routeRestore accessAmbushes near machinerySearch the area before activating power
Library Annex exteriorEnter the annexUnstable flood damageLook for alternate routes and climbable access
Annex interiorFind the restricted sectionHostile creatures and puzzlesExplore rooms, collect clues, then push upstairs

A coded symbol associated with Faye marks a safe location during the early route. Use these signs as navigation clues, especially when flood damage makes the main path unclear. The evacuation announcements also establish the area’s urgency: resources and rescue options are limited, so every detour should have a purpose.

Route Tip

Search around blocked gates, relief crates, and power equipment before moving forward. Important supplies are often placed near the route’s most dangerous transitions.

The demo route eventually leads to the restricted section of the Annex, where Calvin encounters Kohonta. Kohonta can translate the ritual text, but demands help first. The next objective is to reach the Devil’s Reef Hotel and rescue Lorelei, creating the transition from the Library Annex section into the broader Arkham investigation.

Library Annex Puzzles and Investigation

The Library Annex is the first major destination and combines exploration, combat, environmental puzzles, and story discovery. The restricted section is located upstairs, but access is shaped by damaged corridors, locked routes, and encounters with Slither-infected enemies.

Investigate before attacking whenever the room appears quiet. Documents can reveal puzzle context, while optional mysteries can connect clues through the Investigation tab. These side investigations are worthwhile because they may provide extra loot, Talent points, or achievement progress.

Investigation TaskWhat to CheckPossible Benefit
Search the entranceDesks, crates, nearby documentsSupplies and environmental clues
Follow the upper routeStair access and unstable floorsProgress toward the restricted section
Inspect the feeding areaSlither-related remains and containersLore, clues, and possible resources
Examine unusual roomsFurniture, notes, and hidden spacesOptional mystery evidence
Connect cluesInvestigation tabPuzzle solutions, loot, or Talent points

Several puzzles are environmental rather than purely symbolic. Look for power sources, movable objects, blocked passages, and markings that connect one room to another. If a route appears impossible, inspect the surrounding walls and upper ledges before assuming that a key item is missing.

1

Secure the Entry Area

Clear only the enemies blocking the immediate route, then search the entrance for ammunition, documents, and emergency supplies. Avoid rushing toward the first objective marker.

2

Restore the Power Route

Follow the damaged infrastructure and activate the required power equipment. Check nearby rooms first because activating machinery can open a path while also attracting enemies.

3

Reach the Upper Annex

Use the newly available route to climb toward the restricted section. Watch for unstable floors, narrow corridors, and ambush points around corners.

4

Investigate the Restricted Section

Search the library area for the ritual book, examine surrounding evidence, and speak with Kohonta to advance the translation objective.

The emergency relief crates are especially important. They are white-and-gold chests that require ERC keys and can contain inventory or weapon upgrades. Do not ignore a crate simply because the main objective is nearby; an expanded inventory can make the next combat section much more manageable.

Puzzle Warning

Do not treat every document as optional flavor. Some notes explain nearby mechanisms or clue connections, even when they are not required for story progression.

For a page-by-page route index covering the Library Annex, Church, collectibles, Talents, and achievements, consult the The Sinking City 2 Walkthrough and Guide.

Combat, Ammunition, and Slither Enemies

Combat is more prominent in The Sinking City 2 than in the earlier investigation-focused experience. Enemies can absorb multiple shots, so accuracy and positioning matter more than simply firing until a target falls. Use sprinting and dodging to create space, then aim for controlled bursts when a clear opening appears.

The Slither is the main threat during the opening route. These foul worms arrive with the flood and can inhabit the dead, creating Slither puppets. Their sudden movement and cramped attack spaces make narrow hallways particularly dangerous.

Preserve Ammunition

Search rooms, crates, and side paths before major encounters. Fire only when an enemy blocks progress or threatens your position.

Control Distance

Use open spaces to create room for aiming, sprinting, and dodging. Avoid being trapped against damaged structures or dead ends.

Read the Room

Check corpses, containers, and environmental hazards before entering. The setting often signals where an ambush may occur.

Upgrade Carefully

Use collected resources and Talent points to support the weapons and survival style you rely on most often.

Combat SituationBest ResponseCommon Mistake
Single Slither enemyAim carefully and keep an escape routeStanding still after firing
Slither puppetCreate distance before reloadingFighting beside unstable obstacles
Multiple enemiesMove through open space and prioritize blockersSpending every round on one target
Tight corridorUse short attacks and retreat when neededAdvancing without checking corners
Low ammunitionBypass nonessential threats when possibleSearching while enemies remain active

Ammunition management begins before combat. Search relief crates, emergency containers, and rooms adjacent to the main path. The guide materials also emphasize opening collectible chests and completing additional puzzles to unlock weapons, upgrades, or Talent points.

Dodging is more valuable than absorbing damage. The standard control layout includes sprinting, dodging, aiming, shooting, and reloading, with keyboard-and-mouse bindings that can be changed through Settings. Controller layouts differ, so review the keybinds before beginning a serious attempt.

Combat Priority

Survival is usually improved by combining movement, cover, and selective shooting. Upgrade the tools that support your preferred weapon routine instead of spending resources without a plan.

When a creature appears to be dead, give the area a brief inspection before lowering your guard. Slither-related encounters can make familiar corpses dangerous, and the game’s horror design uses environmental clues to create delayed threats.

Safe Rooms, Collectibles, and Talents

Safe Rooms are the most reliable preparation points during the early progression. They restrict enemy access, allow Talent management, provide storage for loot, and support manual saving through conch record players. The autosave system records major checkpoints, but progress between those moments may be lost if Calvin dies.

Save manually whenever you finish a difficult encounter, collect a valuable upgrade, or complete an optional investigation. This is especially useful when exploring a side room before returning to the main objective.

Resource or SystemWhere to LookWhy It Matters
Emergency Relief CratesSide rooms and exploration routesInventory or weapon upgrades
ERC keysExploration areas and containersRequired to open relief crates
Mushroom Jack broadcastsMap areas and interior roomsLore-connected recorded messages
DocumentsThroughout each areaLore, clues, and puzzle context
Talent pointsMysteries, puzzles, and progressionCharacter strength and specialization
Safe RoomsEstablished refuge locationsSave, stash loot, and manage Talents

Mushroom Jack broadcasts are box radios containing recorded lore messages. They are separate from documents and belong to the collectible objectives connected with exploration. Documents generally provide story context or puzzle clues, while broadcasts expand the world through recorded material.

The collectible structure rewards methodical exploration. Emergency Relief Crates and Mushroom Jack broadcasts are the two collectible categories tied to achievement progress, and finding all of them in one playthrough requires attention to missable areas. Documents are useful but are not required for progression or the related collectible achievement goals.

Exploration Checklist:

  • Search each side room before leaving an area
  • Collect ERC keys before passing nearby relief crates
  • Listen to every Mushroom Jack broadcast you discover
  • Review documents for clues and puzzle context
  • Save at Safe Rooms after major discoveries
Save Management

Autosaves occur at major checkpoints, but Safe Rooms provide manual saving and storage. Use them often when you are carrying new upgrades or collectible progress.

Talent points should support a consistent plan. If you rely on direct combat, prioritize improvements that help you survive repeated engagements. If you prefer careful exploration, use upgrades that make resource management and investigation more comfortable. Avoid changing direction every time you find a new weapon; steady investment is easier to evaluate.

Progression Goals and Achievement Planning

The main storyline combines survival horror with investigation. The early objective is not simply to reach a destination; Calvin must recover the ritual book, understand its symbols, and complete the chain of requests that leads toward Faye’s restoration.

The opening story route can be organized into three broad sections: reaching the Library Annex, searching the Annex, and continuing toward the Church and Devil’s Reef Hotel objectives. Optional mysteries, collectibles, and puzzle rewards should be completed while the relevant area is still accessible.

Progression PhaseMain ObjectiveSide Objective
Reaching the AnnexCross flooded Arkham and enter the university districtSearch evacuation routes and relief areas
The AnnexFind the ritual book and meet KohontaSolve local mysteries and collect broadcasts
Translation objectiveSecure help with the ritual textPrepare supplies before traveling onward
Devil’s Reef routeReach the hotel and locate LoreleiExplore alternate paths and save before departure
Achievement cleanupReview missed goalsUse additional saves to revisit discoveries

The achievement list contains 23 goals, with many connected to story progression or area puzzles. A single playthrough can support broad achievement progress, but multiple saves are useful when an investigation or collectible may be missed. Keep a separate save before entering a major new district or committing to a dangerous route.

Story Progression

Advance the Library Annex objective, recover the ritual text, and follow Kohonta’s request.

Investigation Progress

Connect notes and clues through the Investigation tab to uncover optional area mysteries.

Collection Progress

Track Emergency Relief Crates and Mushroom Jack broadcasts as you explore each district.

Achievement Tip

Make a manual save before leaving a major area. This gives you a practical return point if a collectible, puzzle, or investigation step is missed.

Use the following routine when entering any new section:

  • Establish the nearest Safe Room or fallback point.
  • Search the obvious side rooms before triggering the next story event.
  • Record unopened relief crates and unexplained locked paths.
  • Complete available Investigation tab connections.
  • Spend Talent points only after confirming your preferred combat approach.
  • Save before moving into a new district or accepting a high-risk objective.

FAQ: The Sinking City 2 Walkthrough

Q: What is the first major objective in The Sinking City 2 walkthrough?

Calvin’s first major objective is reaching the Miskatonic University Library Annex, finding Recitations of the Tenebrous Soul, and using its resurrection ritual to help bring Faye back.

Q: How do I handle Slither enemies in the opening areas?

Preserve ammunition, maintain an escape route, and use sprinting or dodging to create distance. Slither puppets can be dangerous in narrow rooms, so avoid reloading while cornered.

Q: What are Emergency Relief Crates used for?

Emergency Relief Crates require ERC keys and can contain inventory-slot or weapon upgrades. Search side routes carefully so you do not pass a crate without checking for its key.

Q: Are documents required for progression?

Documents are generally not required to advance the main story, but they can provide lore and clues that help solve local puzzles or optional investigations.

Horror Content

The game includes gore, violence, frightening imagery, and disturbing themes. Take breaks when needed and approach the material at your own comfort level.