本页面内容是关于游戏《质量效应3》的信息，如果您要寻找的是游戏《质量效应》的攻略，请参阅《质量效应》指南。如果您要寻找的是游戏《质量效应2》的攻略，请参阅《质量效应2》指南。如果您要寻找的是游戏《质量效应：仙女座》的攻略，请参阅《质量效应：仙女座》指南。
目录
1 主线情节
1.1 序幕
1.2 第一幕
1.3 第二幕
1.4 第三幕
2 支线任务
2.1 优先目标：神堡I
2.2 优先目标：帕勒文
2.3 优先目标：苏尔凯什
2.4 优先目标：图岑卡
2.5 优先目标：神堡II
2.6 优先目标：桀斯无畏舰
2.7 优先目标：莱诺克
2.8 优先目标：瑟西亚
This page contains a walkthrough for the main missions of Mass Effect 3. Major changes in the gameplay from Mass Effect 2 are listed in the main Mass Effect 3 page, while the effects of importing a saved game from Mass Effect 2 are listed in the Save File Transfer page. For a comprehensive introduction to the mechanics of the actual fighting the player must engage in on most missions, see the combat page.
质量效应传奇版：《质量效应传奇版》整合了所有扩展内容，和原版游戏一样，扩展内容中出现的任务和角色的依然要满足对应要求和条件才能获得。[[传奇版也存在有许多变化和原作不同的地方，包括更改某些装备的获取方式。
以下内容可能透露了《[[]]》的剧情
主线情节[]
Template:For
以下任务排序代表了情节的发展走向。每个任务之间没有完成的时间限制，但相关任务都必须在下一个任务可用之前完成。
序幕[]
序幕：地球——登上SR-2 诺曼底号并逃离正遭受收割者入侵的地球。
优先目标：火星——从塞伯鲁斯手中解救莉亚拉·特苏尼并回收用来对付收集者的超级武器——“擎天炉”的图纸。
优先目标：神堡I——开始召集其他智慧种族拯救银河系。
第一幕[]
优先目标：帕勒文——拯救突锐大君。
优先目标：苏尔凯什——召集突锐人、赛拉睿人和克洛根人领袖举行峰会，然后从塞伯鲁斯手中保护一名克洛根女性。
优先目标：图岑卡——掩护克洛根女性和赛拉睿科学家前往遮蔽塔以释放基因噬体的解药。
第二幕[]
优先目标：神堡II——将神堡议员从一场塞伯鲁斯政变中解救出来。
优先目标：英仙座星帷——和希望帮助“擎天炉”项目的突锐代表会面。
优先目标：桀斯无畏舰——在移民舰队遭遇毁灭性打击之前潜入并摧毁一艘桀斯无畏舰。
优先目标：莱诺克——潜入莱诺克星球表面的收割者基地，并关闭向桀斯发送升级数据的信号。
优先目标：神堡III——和阿莎丽议员会面并了解有关“催化剂”下落的线索。
优先目标：瑟西亚——在收割者向瑟西亚星发动猛烈攻击的同时，前往一座阿莎丽神殿并回收关键信息。
优先目标：地平线——调查塞伯鲁斯与地平线殖民地难民中心之间的关系。
第三幕[]
提示：一旦第三幕开始，玩家将失去完成所有支线任务或前往其他地点的机会，因此在向塞伯鲁斯总部发动攻击之前，建议先完成其他事务。
优先目标：塞伯鲁斯总部——突袭塞伯鲁斯的总部，回收普洛仙虚拟智能并确认“催化剂”的下落。
优先目标：地球——召集银河系的军队发起总攻，从收割者手中夺回地球并启动“擎天炉”。
支线任务[]
These missions are issued or can be acquired as the game progresses. They are sorted according to the Priority mission after which they become available. The opportunity to complete certain side missions expires once specific main plot missions are completed. Others are marked as failed if not completed before a number of other missions are completed. These missions are noted below as "progress-sensitive missions" and "timed missions" respectively. Be aware that any side missions not completed before the main plot mission Priority: Cerberus Headquarters will no longer be accessible for the remainder of the game.
提示：使用“斜体”标注名称的表示该任务为次要任务，仅通过行星扫描、对话或在另一个任务中寻找物品即可完成。
优先目标：神堡I[]
N7：塞伯鲁斯实验室
优先目标：伊甸主星
DLC Mission: Requires the DLC pack Mass Effect 3: From Ashes.
Eden Prime: Resistance Movement
Progress-Sensitive Mission: This mission cannot be completed if not accomplished during your first and only time on Eden Prime.
Shrike Abyssal: Prothean Obelisk
This mission cannot be completed before Priority: Palaven.
优先目标：帕勒文[]
Apien Crest: Banner of the First Regiment
埃莉亚：血囊
埃莉亚：青阳
埃莉亚：天蚀
贝宁：证据
此任务无法在“优先目标：苏尔凯什”之前完成。
进度限制：如果未在“优先目标：图岑卡”之前完成，此任务将会过期。
神堡：外星人医疗胶配方
进度限制：如果未在“优先目标：图岑卡”之前完成，此任务将会过期。
神堡：埃莉亚·特洛克
扩展内容：需要安装扩展内容《质量效应3：欧米伽》。
神堡：巴拉·冯
此任务无法在“优先目标：苏尔凯什”之前完成。
进度限制：如果未在“优先目标：图岑卡”之前完成，此任务将会过期。
神堡：异能增幅界面
进度限制：如果未在“优先目标：图岑卡”之前完成，此任务将会过期。
神堡：布莱森博士
扩展内容：需要安装扩展内容《质量效应：利维坦》
神堡：GX12导热管
神堡：哈纳外交官
《质量效应2》队友客串：如果招募并幸存的话，后藤霞会出现在该任务中。
进度限制：如果未在“优先目标：图岑卡”之前完成，此任务将会过期。
Citadel: Heating Unit Stabilizers
This mission cannot be completed before Priority: Tuchanka.
Citadel: Improved Power Grid
This mission cannot be completed before Priority: Sur'Kesh.
进度限制：如果未在“优先目标：图岑卡”之前完成，此任务将会过期。
格里瑟姆学院：紧急撤离
进度限制：This mission expires if not completed before Priority: The Citadel II.
《质量效应2》队友客串：如果招募并幸存的话，杰克会出现在该任务中。
伊鲁恩：普莱尼克斯之书
This mission cannot be completed before Priority: Tuchanka.
Ismar Frontier: Prototype Components
进度限制：如果未在“优先目标：图岑卡”之前完成，此任务将会过期。
Kite's Nest: Pillars of Strength
优先目标：苏尔凯什[]
阿提卡断面：克洛根小队
Main Plot Progression: Unlocks the main plot mission Priority: Tuchanka if done before Tuchanka: Turian Platoon.
《质量效应2》队友客串：如果招募并幸存的话，古朗特会出现在该任务中。
Citadel: Krogan Dying Message
N7: Cerberus Abductions
N7: Cerberus Attack
Tuchanka: Turian Platoon
Main Plot Progression: Unlocks the main plot mission Priority: Tuchanka if done before Attican Traverse: Krogan Team.
进度限制：This mission expires if not completed before Priority: Thessia.
Citadel: Cerberus Automated Turret Schematics
This mission cannot be completed before Priority: The Citadel II.
N7: Cerberus Abductions
图岑卡：炸弹
限时任务：如果在获取后的三个任务内未完成，则该任务将被标记为失败。
优先目标：图岑卡[]
N7：塞伯鲁斯战斗机基地
优先目标：神堡II[]
Arrae: Ex-Cerberus Scientists
《质量效应2》队友客串：如果幸存的话，雅各布·泰勒会出现在该任务中。
Athena Nebula: Hesperia-Period Statue
Citadel: Batarian Codes
Citadel: Cerberus Ciphers
This mission cannot be completed before Priority: Thessia.
Citadel: Cerberus Retribution
Citadel: Cerberus Turian Poison
Citadel: Chemical Treatment
This mission cannot be completed before Priority: Geth Dreadnought.
Citadel: Inspirational Stories
Citadel: Kakliosaur Fossil
This mission cannot be completed before Priority: Geth Dreadnought.
Citadel: Medical Supplies
Citadel: Medi-Gel Sabotage
Citadel: Reaper Code Fragments
This mission cannot be completed before Priority: Geth Dreadnought.
Citadel: Shore Leave
DLC Mission: Requires the DLC pack Mass Effect 3: Citadel.
Citadel: Target Jamming Technology
This mission cannot be completed before Priority: Geth Dreadnought.
Citadel: Volus Ambassador
Mass Effect 2 Squadmate Cameo: If recruited and alive, Zaeed Massani will appear in this mission.
Citadel: Wounded Batarian
Dekuuna: Code of the Ancients
This mission cannot be completed before Priority: Rannoch.
Hades Nexus: Obelisk of Karza
This mission cannot be completed before Priority: Rannoch.
Hades Nexus: Prothean Sphere
This mission cannot be completed before Priority: Rannoch.
Kallini: Ardat-Yakshi Monastery
Mass Effect 2 Squadmate Cameo: If recruited and alive, Samara will appear in this mission.
Citadel: Asari Widow
Nimbus Cluster: Library of Asha
Silean Nebula: Rings of Alune
This mission cannot be completed before Priority: Rannoch.
Valhallan Threshold: Prothean Data Drives
优先目标：桀斯无畏舰[]
N7: Fuel Reactors
Rannoch: Admiral Koris
Main Plot Progression: Unlocks the main plot mission Priority: Rannoch.
Progress-Sensitive Mission: This mission expires if not completed before Priority: Rannoch.
Rannoch: Geth Fighter Squadrons
Main Plot Progression: Unlocks the main plot mission Priority: Rannoch.
Progress-Sensitive Mission: This mission expires if not completed before Priority: Rannoch.
优先目标：莱诺克[]
Dekuuna: Elcor Extraction
优先目标：瑟西亚[]
N7: Communication Hub
Template:Navbox guides (ME3)