The Sinking City 2 all chapter walkthrough explained

The Sinking City 2 all chapter walkthrough demands more than just survival instincts — it requires understanding how each of the game's chapters feeds into one of several unlockable endings. Frogwares' sequel drops you into Arkham after a catastrophic flood, and the choices you make across roughly 15-20 hours of play determine whether Calvin Rafferty rescues his beloved or sacrifices everything. This complete chapter-by-chapter breakdown maps every major beat, explains how your decisions ripple forward, and reveals what it takes to see each ending variant.

Knowing the full structure before you start matters because The Sinking City 2 all chapter walkthrough contains branching paths that lock in early. A single dialogue choice in Chapter 2 can close off the best ending entirely, and many players discover this only after sinking ten hours into a doomed save file. We have organized this guide to give you the complete story recap, chapter-by-chapter objectives, and the exact conditions for every ending — so you can play confidently without spoiling the experience.

Chapter-by-Chapter Breakdown of the Main Campaign

The campaign unfolds across seven distinct chapters, each with its own environmental theme, enemy roster, and narrative turning point. Frogwares designed the pacing so that the first three chapters establish the mystery of the flood, while the final four chapters escalate toward the Dreamlands confrontation. Here is the full breakdown of what each chapter demands from you.

Chapter 1: The Flood — Your First Steps in Arkham

The opening chapter serves as both tutorial and narrative hook, dropping you into the flooded streets of Arkham with only a flashlight and a revolver. Calvin Rafferty arrives by boat, searching for a woman whose soul was trapped in the Dreamlands after a ritual gone wrong — a premise that the official Steam store page describes as "a rescue with impossible stakes." You will learn the basics of boat navigation through the drowned city, scavenging supplies from rooftops and half-submerged storefronts.

The chapter's critical choice arrives when you encounter a survivor trapped on a collapsing pier. Helping them costs you valuable time and resources, while ignoring them speeds your progress toward the safe house. This decision sets a subtle reputation flag that influences how NPCs treat you in later chapters. Most players miss this entirely, but it contributes to the reputation alignment system that affects which endings remain available. The chapter concludes with a scripted chase sequence where a Drowned Leviathan pursues your boat through the flooded streets, teaching you the importance of managing your engine's heat gauge.

Chapter 2: The Ritual — Mercy Hospital Investigation

Mercy Hospital stands as one of the most memorable locations in the game, a sprawling multi-floor facility where the cult performed their failed ritual. Your objective involves finding the original ritual site in the basement morgue, but the hospital's twisted corridors and hallucination-inducing wards complicate the search. The investigation mode becomes essential here — it highlights interactive evidence and lets you reconstruct events through spectral echoes.

The hospital introduces the game's first true boss encounter: the Matron, a massive flesh-woven creature that patrols the maternity ward. Defeating her requires using the environment — specifically, collapsing the ceiling supports onto her while she charges. The chapter's ending choice involves whether you destroy the ritual documents or preserve them for later study. Destroying them makes the cult's later attacks less coordinated, while preserving them unlocks additional lore entries but makes Chapter 3's stealth sections significantly harder. This is one of the earliest decisions that shapes your The Sinking City 2 all chapter walkthrough experience.

Story Recap: The Narrative Threads That Matter

Understanding the story recap is essential because the game's endings hinge on how well you grasp the motivations of each faction. Three major factions compete for control of Arkham's fate, and your alignment with each determines which ending you unlock. The Cult of Dagon seeks to complete the ritual and merge Arkham with the Dreamlands permanently. The Survivors' Coalition wants to drain the flood and restore the city, even if that means destroying the Dreamlands gateway. The Order of the Threshold believes the flood is a necessary purification and wants to maintain the balance between worlds.

Your interactions with these factions throughout the chapters determine your faction reputation scores, which the game tracks invisibly. Helping the Cult in Chapter 3 by not reporting their hidden shrine raises your Dagon reputation by 15 points. Similarly, saving Coalition members during Chapter 4's sewer sequence boosts your Vance reputation. The game never displays these numbers directly, which is why many players stumble into endings they did not intend. The all endings guide breaks down the exact thresholds required for each conclusion.

Chapter 3: The Cult — Infiltration and Betrayal

French Hill serves as the cult's stronghold, a once-affluent neighborhood now transformed into a ritual ground filled with chanting worshippers and patrolling enforcers. The chapter introduces the disguise system, which lets you wear cultist robes to blend in with the crowds. However, certain actions — running, opening restricted doors, or speaking with high-ranking members — break your cover and trigger combat.

The chapter's pivotal choice comes when you discover the cult's plan to sacrifice a group of captured survivors. You can either alert the survivors and help them escape, which costs you the cult's trust and makes the rest of the chapter combat-heavy, or you can maintain your cover and let the sacrifice proceed, gaining valuable intelligence about the ritual's location. This decision carries significant weight because it directly influences your Dagon reputation and determines whether the alternate ending involving the cult's victory remains accessible. Players who want to see every ending should maintain a save file before this choice.

Unlockable Endings: Conditions and Requirements

The Sinking City 2 unlockable endings system represents Frogwares' most ambitious narrative design yet, with five distinct conclusions ranging from utter catastrophe to a bittersweet rescue. Each ending requires specific reputation thresholds, key items, and chapter choices. The game's final chapter presents a single decision point, but what options appear there depends entirely on your accumulated choices throughout the campaign.

The Rescue Ending stands as the most difficult to achieve because it requires maintaining high reputation with two factions simultaneously while keeping the third neutral. This means helping the Coalition survivors in Chapter 3 while also assisting the Order's research in Chapter 5, all without alienating the Cult so much that they become hostile. The rescue ending guide provides a chapter-by-chapter checklist for this path.

Chapter 4: The Depths — Underwater Terrors

The sewer system beneath Arkham presents the game's most claustrophobic sequences, with underwater sections that require careful oxygen management while navigating flooded tunnels. The chapter introduces the diving suit, which grants extended underwater time but makes you slower and more vulnerable to the Drowned — amphibious creatures that hunt by sound rather than sight. Moving slowly and using your flashlight sparingly becomes essential for survival.

The chapter's major decision involves the Drowned Artifact, a relic that the Cult desperately wants and the Coalition wants destroyed. You can hand it to either faction, keep it for yourself, or destroy it outright. Each choice carries different consequences: giving it to the Cult boosts your Dagon reputation significantly, keeping it unlocks the Dreamlands Key in Chapter 5, and destroying it earns favor with the Coalition but locks you out of two endings. This is arguably the most consequential choice in the entire The Sinking City 2 all chapter walkthrough because it determines which endings remain mathematically possible.

Epilogue Content and Post-Game Exploration

The epilogue varies dramatically depending on which ending you achieve, but all versions share one feature: a post-game exploration mode where you can revisit Arkham with your final equipment loadout. This mode lets you complete side quests you missed, hunt down remaining collectibles, and experience the city's transformed state based on your ending. The epilogue content adds roughly 5-8 hours of gameplay for completionists.

The post-game mode also feeds into the new game plus guide, which explains how your completed save file carries over certain choices and unlocks into subsequent playthroughs. Notably, the True Ending unlocks a special New Game+ mode where all faction reputations start at 50, making it significantly easier to achieve different endings on subsequent runs.

Chapter 5: The Dreamlands — Reality Unravels

The Dreamlands sequence represents the game's most visually striking and mechanically complex chapter. Here, reality shifts based on your sanity level, with corridors rearranging themselves and enemies appearing only when you look away. The sanity mechanics require careful management — using too many reality-bending abilities accelerates your descent into madness, while avoiding them entirely makes combat nearly impossible.

This chapter introduces the Dreamlands Key, an item that appears only if you kept the Drowned Artifact in Chapter 4. The key unlocks the Threshold's hidden chamber, granting access to the Order's most guarded secrets and enabling the True Ending path. Without the key, you can still reach the final chapter, but your options there become severely limited. The chapter culminates in a confrontation with the Dreamer, a colossal entity that serves as the game's penultimate boss. Defeating it requires solving a multi-phase puzzle that tests everything you have learned about the game's reality-shifting mechanics.

Strategic Recommendations for Ending Variety

Achieving all five endings requires at least three full playthroughs, assuming you optimize your choices each time. The game's chapter select feature — unlocked after your first completion — lets you replay individual chapters while keeping your overall reputation scores, which makes hunting for specific endings significantly faster. However, some choices lock in permanently, so you cannot simply replay Chapter 4 to undo a Chapter 2 decision.

For your first playthrough, we recommend playing blind and accepting whatever ending you naturally achieve. The game's narrative impact hits hardest when you do not know what is coming. For subsequent runs, focus on one faction per playthrough to maximize their reputation efficiently. The faction reputation system awards roughly 10-15 points per major choice, and you need 60-70 points for most endings, meaning you must consistently side with one faction across all seven chapters.

The final chapter guide offers a detailed breakdown of the final decision point and how each available option resolves. One particularly useful strategy involves keeping separate save files at the start of Chapter 5, allowing you to branch into different endings from that point without replaying the entire campaign. This approach works because the final chapter's available options depend on your accumulated reputations, which are already locked by that point.

Chapter 6: The Return — Escape Sequence

Chapter 6 shifts from exploration to survival as the city begins collapsing around you. The flood waters rise dramatically, buildings crumble, and the Drowned Leviathan returns as a recurring pursuer. This chapter functions as a series of timed escape sequences, each requiring you to navigate increasingly dangerous environments while managing limited resources. The timed escape mechanics test your knowledge of Arkham's layout, rewarding players who explored thoroughly in earlier chapters with shortcut knowledge.

The chapter's choice involves whether you use your remaining explosives to clear a path for fleeing survivors or save them for the final confrontation. Clearing the path earns significant Coalition reputation but leaves you under-equipped for Chapter 7's boss fight. Saving the explosives makes the final battle easier but condemns several NPCs to death, which some players find difficult to accept. This trade-off exemplifies the game's commitment to meaningful choices — there is no objectively correct answer, only different priorities.

Frequently Asked Questions

How many chapters are in The Sinking City 2?

The main campaign contains seven chapters, starting with The Flood and ending with The Choice, each taking roughly 2-3 hours for a 15-20 hour total. However, expect this to stretch if you explore Arkham thoroughly or pursue the unlockable endings detailed in our breakdown.

Can I unlock all endings in one playthrough?

No, the game requires at least three playthroughs to see all five endings because faction reputation choices lock in as you progress. However, keeping a save file at the start of Chapter 5 lets you branch into multiple endings from that point without replaying the entire campaign.

What is the easiest ending to get?

The Drowned World ending is the easiest because it requires consistently siding with the Cult of Dagon, which involves fewer morally difficult choices. Simply let the sacrifice proceed in Chapter 3, give the artifact to the Cult in Chapter 4, and choose the Cult's option in the final chapter.

Does New Game Plus affect which endings I can unlock?

Yes, completing the True Ending unlocks a special New Game Plus mode where all faction reputations start at 50, making it significantly easier to achieve different endings on subsequent runs. Other endings unlock smaller bonuses like cosmetic items and alternate starting equipment.

How long is the epilogue content?

The epilogue adds roughly 5–8 hours of post-game exploration depending on your ending. The True Ending offers the most extensive epilogue with developer commentary rooms and access to all previously locked areas, while the Drowned World ending provides the shortest post-game content.