Gears of War: E-Day Walkthrough: Every Act and Chapter List

E-Day’s campaign runs across the first three days of the Locust invasion of Sera, told through a Prologue + 5 Acts + Epilogue — 28 sections, 26 of them numbered chapters. This hub maps the whole structure: what happens in each act, where every boss lives, and where the collectible sweeps pay off. Difficulty choices and pacing are covered in how long E-Day takes to beat.

Every act and chapter in Gears of War: E-Day

| Act | Chapters | | | — | | Prologue | — | | Act 1 | Emergence · Survival of the Fittest · A Gear in Need · Back in the Fold | | Act 2 | Bravo Squad · Hold the Line · No Gear Left Behind · Flyboys · Overrun | | Act 3 | Stranded · Enemy Lines · Last Foothold · The Convoy · Desperate Times · Desperate Measures | | Act 4 | Hope and Ruin · Technical Difficulties · Tough as Nails · Signals · Paths Diverge · Critical Failure | | Act 5 | One Problem at a Time · Ghost Town · Storm Clouds · Resolute · The Fall of Kalona | | Epilogue | — |

Acts 1 and 5 are the shortest; Act 3 carries the most chapters. Every chapter is individually selectable for replay from the menu, which is how post-credits collectible sweeps and the missable achievements from our achievements guide get cleaned up.

What happens in each act?

The three-day arc gives each act its own temperature:

• Day one — dread. The Prologue and Act 1 cover the eruption night: Emergence, the first scramble to survive, and the defense of City Hall where the first Brumak arrives. Marcus is a recently demobilized Gear; the war he trained for just ended, and this one starts.
• Day two — the squad forms. Act 2 assembles Bravo Squad — Marcus, Dom, Mags Carter, and Lucas Reyes — and opens Kalona downtown as a free-roam zone with optional side content (defend, escort, clear). This is where collectible density jumps: 38 of the game’s 140 collectibles live in Act 2.
• Day three — desperation. Acts 3–5 push out of the dying city: the tunnel fights under the Corpser’s territory, the refinery and its twin Scoria in Act 4’s “Critical Failure,” and finally the bridge-deck confrontation with Svore Vraahk as Kalona falls. Survivors evacuate toward Port Farrall — and the Epilogue lands the reveal that every city on Sera was hit simultaneously.

Where is every boss in the campaign?

Seven encounters across five bosses:

| Boss | Location | Guide | | — | — | — | | Brumak (1st) | Act 1 Ch 4 — Back in the Fold | Brumak guide | | Corpser (1st) | Act 3 Ch 2 — Enemy Lines | Corpser guide | | Weaponized Brumak | Fort Vigil assault | Brumak guide | | Brumak (2nd) | Evacuation push | Brumak guide | | Scoria ×2 | Act 4 Ch 6 — Critical Failure | — | | Corpser rematch | Later campaign (act unspecified) | Corpser guide | | Svore Vraahk (final) | Act 5 — The Fall of Kalona | Vraahk guide |

Where should collectible hunters focus?

Per-act collectible counts: Act 1 — 13, Act 2 — 38, Act 3 — 36, Act 4 — 41, Act 5 — 12. Act 2’s free-roam downtown and Act 4’s dense chapters carry the most loot per minute. Add 17 Secondary Objectives (four missable — Act 3 Ch 2, Act 4 Ch 2 and Ch 4, Act 5 Ch 3) and 36 Supply Caches, and a single attentive first pass can bank most of the completion list in our achievements guide. Hard Cases (weapon mods) hide along all of these routes — the mod system they feed is explained in beginner tips.

FAQ

How many chapters are in Gears of War: E-Day?

26 numbered chapters across 5 Acts, bookended by a Prologue and Epilogue — 28 sections total.

Is there any open world in E-Day?

No. Act 2 opens Kalona downtown as a free-roam zone with optional side content, but the campaign stays linear overall — think open zone, not open world.

Can you replay individual chapters?

Yes — every chapter is selectable for replay from the menu, which is how collectibles and missable achievements are recovered after the credits.

How does the campaign end?

Kalona falls. The final fight against Svore Vraahk ends on the bridge, and the survivors evacuate toward Port Farrall — with the Epilogue confirming every city on Sera was hit simultaneously on E-Day.