Baldur's Gate 3 walkthrough: complete act-by-act guide

Baldur’s Gate 3 walkthrough: a complete, act-by-act path through Faerûn

The first time you launch Baldur’s Gate 3, the real difficulty is not the turn-based combat. It is keeping track of an enormous web of companion stories, faction politics, hidden doors, and timed events that the game never fully summarises for you. This Baldur’s Gate 3 walkthrough is meant to act as a quiet companion: it lays out the shape of each act, a reliable quest order, the build decisions that pay off the longest, and the small mechanical details that often decide whether a fight ends in two rounds or twenty. You can read it from a single menu, plan a session, and return to the game without losing your place.

Rather than insisting on a single correct path, the guide is structured around the fact that Baldur’s Gate 3 is a branching RPG. Each section explains what the game allows in the order it expects, then calls out the moment where a meaningful choice opens a different outcome. The point is not to remove reactivity, but to make sure you know when a choice is coming, what it costs, and which system unlocks behind it.

Understanding the structure of Baldur’s Gate 3

Baldur’s Gate 3 is divided into three acts that map onto three very different gameplay loops. Act 1 keeps the party in a relatively small wilderness region focused on recruitment, exploration, and tutorial-grade encounters. Act 2 funnels the party into a single shadowed region where a horror storyline closes in. Act 3 opens the city of Baldur’s Gate, which functions as a large, multi-faction sandbox. Each act has its own difficulty curve, dominant quest lines, and rules around long rests, merchants, and fast travel points.

Long rests in particular change the rhythm of the game. The camp is more than a safe haven: it triggers companion scenes, which are the main way party members advance their personal questlines. Skipping long rests to save resources is a real temptation, but it also skips content that does not appear anywhere else. The walkthrough below calls out each act’s natural rest cadence and the conversations worth seeing before fast-traveling into the next region.

Choosing an origin character, class, and difficulty

Before the first fight, the game asks for a class, a subclass at the appropriate level, a difficulty preset, and an origin character. The origin selection is more important than it looks. Playing as one of the origin companions (Astarion, Shadowheart, Gale, Lae’zel, Wyll, Karlach, or the Dark Urge) embeds your protagonist in a defined backstory with unique scenes and a personal questline that interacts with the wider story. Playing as a custom Tav gives you full control but fewer automatic story beats.

For a first run, the most forgiving combinations are usually a martial class with strong sustain (Paladin, Fighter) paired with a full caster who can handle the wide range of saving throws the game demands. Difficulty presets (Explorer, Balanced, Tactician, Honour, Custom) are best treated as a way to control how forgiving the encounter math is, not as a difficulty tier in the traditional sense. Honour mode adds a single save and permadeath behaviour that completely changes the cost of mistakes.

Decision	What it affects	Safe first-run choice	Replay-friendly choice
Origin vs. custom Tav	Personal quest triggers, camp scenes, party banters	Custom Tav (full control)	Origin character (new story beats)
Class at level 1	Hit points, proficiencies, role in party	Paladin or Fighter	Sorcerer or Bard
Subclass at level 1 or 3	Core combat kit and resource loop	Oath of Devotion / Battle Master	Wild Magic / College of Lore
Difficulty preset	Enemy stats, friendly-fire rules, save rules	Balanced	Tactician or Honour

The party you build around the protagonist is at least as important as the protagonist. A typical balanced party covers melee damage, ranged damage, area control, healing or support, and a face character for dialogue. Baldur’s Gate 3 does not require a fixed composition, but having one party member who can pass Persuasion checks, one who can pick locks, and one who can cast the Identify spell removes most of the friction in exploration and dialogue.

Building a party that survives the early game

The first ten hours of Baldur’s Gate 3 are dominated by low-level combat. Enemies hit hard but are squishy, and the action economy (one Action, one Bonus Action, one Movement per turn, plus Reaction) matters more than raw damage. A party that understands that a single prone or stunned enemy is often worth more than a high-damage attack will steamroll encounters that trip up less disciplined parties.

Pick a frontline class that can wear heavy armor and hold the front of the battlefield, leaving ranged characters free to fire without provoking opportunity attacks.
Bring at least one caster who can learn Identify, Magic Missile, Healing Word, and a control spell such as Sleep or Hold Person. These spells resolve most of the early game’s hardest checks.
Keep a skill-monkey character with high Dexterity, proficiency in Stealth, Sleight of Hand, and at least one Wisdom or Charisma skill for dialogue.
Use the environment. Pushing enemies off cliffs with Shove, igniting grease spills with Fire Bolt, and breaking environmental objects (crates, beams, barrels) can end fights without costing a spell slot.
Remember that the Help action adds a bonus to an ally’s next roll. It is a quietly powerful tool, especially out of combat for skill checks.

If you would rather plan a build than improvise, a dedicated class guide breaks down one of the strongest progressions for an experienced run. For first-timers, a Paladin or Fighter delivers reliable damage without depending on spell selection, and they keep working when the game’s difficulty climbs in Act 2.

Act 1 walkthrough: the Nautiloid crash, the Grove, and the goblin camp

Act 1 opens on the nautiloid, then dumps the party on the Sword Coast near the Druid Grove. The game uses this act to teach almost every system it will rely on later: dialogue, exploration, stealth, environmental combat, the journal, and the camp. A reliable first act is built on three habits: do not rush, speak to every party member, and explore off the road.

The crash site itself holds several tutorial encounters, a few recruitable party members, and a handful of items that are surprisingly strong for level 1. The early game also includes the first major moral fork: the fate of the Druid Grove versus the goblin camp. Whichever faction you side with, the game treats the choice as a turning point that locks out the opposing questline’s resolution and changes which NPCs will speak to you in later acts.

Recommended quest order in Act 1

Complete the nautiloid and crash-site encounters, including the mind flayer and the first set of companion rescues.
Travel to the Druid Grove, complete the “Find the Missing Shipment” tutorial, and meet the tieflings and druids.
Recruit any companions you have not yet found, especially Shadowheart, Astarion, Gale, Wyll, and Karlach.
Resolve the “Rescue the Druid Halsin” quest by infiltrating the goblin camp, optionally with the druid Kagha’s secret support.
Complete side content in the Blighted Village, the Sunlit Wetlands, the Rosymorn Monastery, and the Underdark before committing to the grove’s final confrontation.

The goblin camp is the most open-ended zone in Act 1. The map supports at least four distinct approaches: open combat, stealth assassination of leaders, a fake-loyalty infiltration through Dror Ragzlin, and a quiet resolution through the special NPC in the goblin priestess’s sanctum. Whichever route you take, the final confrontation determines whether the grove survives. This is the first place where a real walkthrough pays off, because the game does not clearly warn you that several NPCs will die if you choose a particular resolution.

Act 1 location	Key encounters	Level range	Reward or unlock
Nautiloid and crash site	Mind flayer tutorial, first companion	1	Camp access, basic gear
Druid Grove	Festival, tiefling refugees, Kagha arc	1-3	Merchants, first long-rest stability
Blighted Village	Phase spider matriarch, windmill puzzle	2-3	Underdark entrance, alchemy ingredients
Underdark	Duergar, Sussur tree, myconid colony	3-4	Unique weapons, permanent buffs
Goblin camp	Dror Ragzlin, Minthara, priestess	3-4	Faction outcome, Halsin

Companion management and camp scenes

Companions in Baldur’s Gate 3 approve or disapprove of specific decisions, and these approval scores open and close personal questlines. The system is not hidden, but it is easy to ignore. The walkthrough treats companion management as a regular checkpoint rather than an afterthought: each time you long rest, you should be in the camp with at least one companion you have not spoken to recently.

Camp scenes are short, voiced vignettes that often unlock the next chapter of a personal quest. They do not happen on demand; they trigger when a particular combination of approval thresholds, story progress, and game state is met. Skipping long rests to save resources effectively skips these scenes, which can stall entire companion arcs. The cost of a long rest is usually manageable, because the game hands out camp supplies and food items in roughly the right quantities for the act’s intended pace.

Speak to each party member at camp at least once per long rest, even if you do not change equipment.
Check the journal’s “Companions” tab regularly. It lists each character’s current quest step and the next trigger.
Avoid disbanding the entire party for stealth missions. Solo scouting is efficient, but it can lock you out of mid-scene dialogues.
Keep a watch on approval. A strongly disapproving companion can leave the party at a critical moment in certain story branches.

Quests that look like side content often feed directly into companion arcs. Astarion’s personal quest is technically optional, but it intersects with the goblin camp and with several Act 2 zones. Shadowheart’s arc pivots on an item found inside the grove’s temple. Treating companion content as a parallel track of the main story rather than a distraction avoids the common “I missed half a companion’s dialogue” problem on a single run.

Inventory, alchemy, and merchant planning

Inventory management is one of the most underestimated parts of a first run. The game does not impose a hard carry limit, but it does encourage careful decision-making through weight, encumbrance, and a fairly generous merchant economy. A short walkthrough of how to think about loot in Act 1 saves a lot of frustration later.

Keep one stack of each potion category. Scrolls are reusable spell slots, so they are usually worth holding even when a scroll is weaker than a slot of the same level.
Salvage alchemy ingredients into extracts at camp. The alchemy system is the most cost-effective source of healing and buff potions.
Identify items before selling them. Identified gear reveals whether an item is magical, which dramatically changes its price.
Do not sell “unique” tagged items. Even when their stats are mediocre, they are often tied to quests or to companion interactions.
Visit merchants after each major story beat. Their stock rotates in response to act progress and to decisions in nearby zones.

Camp storage is limited but persistent across acts, so it is reasonable to bank ingredients and high-value reagents that you are not using yet. The camp chest also works as a shared resource pool: food and alchemy ingredients are pooled for party use, while equipment remains character-specific.

Combat tactics that work in every act

Once you understand the action economy and the spell list, most combat in Baldur’s Gate 3 becomes a puzzle about positioning, control, and resource management. The same tactical principles keep working in every act, even as enemy stat blocks grow much more dangerous.

Open every major fight with a control effect if you have one. Sleep, Hold Person, or a web often decide the fight before a single hit lands.
Use the high ground rule. Ranged attacks from elevated positions gain a bonus to hit and sometimes to damage, which is one of the most reliable free advantages in the game.
Pre-buff before walking into dialogue-heavy zones. A single casting of Longstrider, Bless, or Mage Armor at the start of the day covers most ambush scenarios.
Avoid clustering. Area-of-effect spells are everywhere, and the game rewards spreading out before you trigger a fight.
Keep at least one character back from the frontline with a healing spell ready. Healing Word can pick up a downed character from across the map as a bonus action.

These patterns are the difference between a clean run and a string of party wipes. They also apply to the toughest fights in Act 3, where the encounter designers expect you to use the environment as much as your spell list.

Act 2 walkthrough: the Shadow-Cursed Lands

Act 2 collapses the open wilderness of Act 1 into a single region: the Shadow-Cursed Lands. The mechanical change is just as significant as the narrative one. Light sources are now a survival mechanic, the map is dense with horizontal exploration, and the difficulty curve spikes because every encounter assumes a level 5 or 6 party. Long rests become harder to plan, because certain camp locations trigger ambushes if the party is not careful.

The act’s central questline is divided between the siege of the Last Light Inn, the search for Balthazar’s Gauntlet, and the resolution in the Shadowfell. Each of these quest hubs opens and closes in a strict order. The Moonrise Towers are the social hub of the act and serve as the gateway to almost every late-Act 2 decision. Several NPCs, including key companions, have irreversible fates in this act, which is why a walkthrough that flags the order of operations is genuinely useful rather than merely convenient.

Act 2 zone	Mechanical focus	Common failure mode	Walkthrough tip
Path to Last Light Inn	Light sources, harpy ambush	Crossing the dark without a light	Always carry a torch, lantern, or light cantrip
Last Light Inn	Defense event, Isobel	Saving the wrong NPC	Position party around Isobel before the cutscene
Moonrise Towers	Stealth, disguise, social checks	Failing the first disguise check	Save before entry; re-spec a face skill if needed
Gauntlet of Shar	Puzzle gauntlet, trials	Missing a soft-lock path	Bring a character with high Perception and Thieves’ Tools
Shadowfell	Single scripted encounter	Misreading the NPC’s intent	Reload before dialogue if outcome is unclear

The single most common mistake in Act 2 is mismanaging long rests. Because several zones host ambushes if the party rests too close, the safe approach is to keep one or two fast-travel points reserved as rest locations and to plan fast travel back to a safe inn after each major quest. Camp supplies are also more scarce than in Act 1, so rationing food and camp-appropriate scrolls is worth treating as a real resource.

Major choices in Act 2

Three decisions in Act 2 have outsized impact on the rest of the game. First, the fate of the Nightsong in the Gauntlet of Shar determines whether Shadowheart’s arc takes its darker or lighter path, and it changes several quest outcomes downstream. Second, the order in which you deal with Ketheric Thorm’s subordinates affects the difficulty of the final Act 2 fight and the available allies. Third, the resolution at the Mind Flayer Colony changes the ending conditions for several NPCs and the epilogue slides.

Because these choices can be saved and reloaded easily, the walkthrough’s approach is to plan a primary path, save explicitly before each decision, and only commit once the player understands the cost. Trying to fix a decision later in the game is rarely possible, and the game’s dialogue system is strict about whether a decision can be revisited.

Leveling up, feats, and multiclassing

Each act expects the party to level up roughly twice. The game’s level cap is 12, and the most efficient builds respect the act-level targets rather than min-maxing in isolation. Feats are the largest source of build power, and they are only granted at certain levels depending on the class. Multiclassing unlocks at level 2, but the cost is real: multiclassing delays higher-level class features and often requires careful stat planning at character creation.

Aim for a feat at level 4 in martial classes. Ability Score Improvements are valuable, but feats such as Great Weapon Master or Sharpshooter define most optimized builds.
Casters usually take a feat at level 8 or 12, after their main stat is at 20. War Caster and Resilient (Constitution) are common choices for concentration-heavy casters.
Multiclassing into Paladin or Fighter is the most common first multiclass because of the action economy synergy with smite spells or Action Surge.
Respec is available at camp for a modest gold cost. The walkthrough recommends using it to experiment rather than treating the first build as final.

Act 3 walkthrough: Baldur’s Gate itself

Act 3 opens when the party arrives at the gates of Baldur’s Gate. The map is the largest in the game, with three distinct districts and dozens of side quests scattered across the lower city, the upper city, and the waterfront. The narrative weight shifts from “survive” to “decide”: the player is now in a position where the choices are political, and most major NPCs have moved into a faction structure that the player can support, oppose, or quietly manipulate.

The act’s design reintroduces the open-ended exploration of Act 1, but with much higher stakes. Enemies are level 10 or 11 by default, and several boss encounters expect specific tactics. A reliable walkthrough for Act 3 is essentially a checklist of major questlines, each with its own prerequisites and pitfalls.

Act 3 quest checklist

Complete the Lower City entry quests and unlock the main districts.
Resolve companion personal arcs, which frequently have Act 3-only triggers.
Run the House of Hope heist or its equivalents for high-tier rewards and one major story fork.
Progress the murder investigation, which acts as the act’s investigative spine.
Decide each of the three main faction outcomes in the lead-up to the endgame.
Assemble the party’s final equipment loadout and clear the gauntlet of optional bosses for build-defining items.

Companion content deserves special attention here. Astarion has an Act 3 quest that is gated behind a specific encounter in the lower city, and the resolution has long-lasting consequences. Several of these quests also offer unique camp items that act as permanent buffs when worn. If you intend to push the romance or personal arc to its conclusion, the relevant scene typically requires a long rest at camp after a specific story beat, not before.

Act 3 questline	Primary district	Key decision	Companion tie-in
Murder investigation	Lower City	Identify the killer before confronting them	Multiple companions comment
House of Hope	Undercity	Free, bind, or destroy the patron	Gale personal quest
Gortash’s coronation	Upper City	Approach the meeting as guest, spy, or assassin	Wyll and Karlach react
Orin and the Bhaal cult	Undercity	Stop the ritual or let it complete	Multiple deaths possible
Final endgame choice	High Hall	Choose the outcome and any party sacrifices	All companions

If you have played Act 1 and Act 2 without missing content, Act 3 is dense but rarely confusing. The most common error is rushing into the coronation or the temple before resolving the lower-city investigation, which can lock the party out of dialogue branches that lead to the cleanest outcomes. A walkthrough that lists which quest triggers open which dialogue gates is the single most useful planning tool for the act.

For wider context on the franchise’s roots, the long-running setting is documented on the Baldur’s Gate Wikipedia page, which traces the city and the property from its earliest tabletop iterations through the modern CRPG line. Broader coverage of the property’s continued expansion can be found in reporting on the upcoming television adaptation in development at HBO, which provides useful background on where the world is headed next, and the Deadline article on the Craig Mazin and HBO series outlines how that adaptation is being structured.

Frequently asked questions

How long does a Baldur’s Gate 3 walkthrough take to complete?

A focused run on Balanced difficulty typically takes 60 to 90 hours. A completionist run that covers every companion arc, every optional boss, and the Honour mode rules can run well past 150 hours. A walkthrough that flags the most rewarding optional content helps trim that number without sacrificing the parts of the game that justify the time investment.

Should I play an origin character or a custom Tav for a first run?

Custom Tav is the most flexible first experience because you are not locked into a backstory, and you can build your party around a personal theme. An origin character is more rewarding on a second run, when the player is comfortable with the systems and wants to see the story from inside a companion’s perspective.

What is the best class for a beginner in Baldur’s Gate 3?

Paladin and Fighter are the most forgiving because their core combat loop does not depend on spell selection, and they scale well with simple equipment. Among casters, a Sorcerer is a strong pick for a second character who can support the front line from range.

How do long rests work and how often should I take them?

Long rests restore hit points, spell slots, and class resources, and they trigger companion scenes at camp. The game does not require a strict rest count, but a healthy rhythm is roughly one long rest after each major quest hub. Skipping long rests to conserve resources will cost you dialogue and approval, especially in Act 2 and Act 3.

Can I save everyone in the game?

Several outcomes are mutually exclusive, and a true “save everyone” run requires careful planning, especially around the Act 2 Nightsong choice, the Act 3 coronation, and the resolution of the murder investigation. A walkthrough that lays out the prerequisites for the best outcomes is a real time-saver because the game rarely warns you when a decision is permanent.

Is Honour mode worth playing?

Honour mode is designed for experienced players who want the highest-stakes run. It features a single save, permadeath, and a tougher encounter math. If you are new to the game, finish a regular run first to learn the encounter design, then attempt Honour mode with a planned build and a clear understanding of the toughest fights in each act.

What is the difference between the Druid Grove and the goblin camp resolution?

Supporting the Druid Grove saves the tiefling refugees, keeps the druid faction intact, and unlocks a defensive siege. Supporting the goblin camp is faster but leads to the grove’s destruction and removes several companion reactions. Both paths converge later in the game, but companion approval and certain unique items differ between them.

Do I need to play the previous Baldur’s Gate games to enjoy the third one?

No. Baldur’s Gate 3 is set in the same universe and uses the same ruleset inspiration, but it tells a self-contained story. A new player can enjoy the full game without prior context, although familiar players will recognise returning characters and references that enrich the experience without being required for it.

What should I do after finishing the game once?

Most players start a new run with a different origin character, a different class, and a different set of decisions. The game supports this kind of replay because the factions, romances, and companion arcs are deeply branched. A second run is also the right time to try the harder difficulty presets, including Honour mode, and to explore the more obscure side content that was skipped on the first run.

Are there expansions or major updates I should know about?

Larian Studios has continued to release patches that adjust balance, fix quest-blocking bugs, and add quality-of-life features. Any future expansions or story content should be checked against the official patch notes, because some walkthrough steps and class rankings shift between major updates. The studio’s official communications are the most reliable source of current details.