How do I unlock the secret ending with the Illithid in Baldur's Gate 3?

To unlock the secret ending involving the Illithid in Baldur's Gate 3, you need to make specific choices throughout the game that align with the Illithid's influence and power. This ending is tied to the Mind Flayer storyline, which revolves around the parasite in your character's head and the choices you make regarding its use. Here is a detailed guide on how to achieve this ending, including mechanics, strategies, and tips.

First, it is important to understand the mechanics of the Illithid powers. Early in the game, you will be infected with a Mind Flayer parasite. This parasite grants you access to unique Illithid powers, which can be used in dialogue and combat. These powers are tied to your Wisdom and Intelligence stats, so building a character with high scores in these attributes will make it easier to succeed in Illithid-related checks. As you progress, you will encounter opportunities to either resist or embrace the parasite's influence. To unlock the secret ending, you must consistently choose to embrace the Illithid powers and make decisions that align with the Mind Flayer agenda.

Step-by-step, you should start by using the Illithid powers whenever they are presented in dialogue or combat. This will increase your connection to the parasite and open up new dialogue options and story paths. For example, during the encounter with the Mind Flayer in the Nautiloid ship at the beginning of the game, choose to use the Illithid power to dominate the Intellect Devourer. This sets the tone for your character's willingness to embrace the parasite. Throughout Act 1, you will encounter several characters, such as the Dream Visitor, who will offer you advice on how to handle the parasite. Always choose options that suggest you are open to using the parasite's power.

In Act 2, you will face a critical decision when you encounter the Mind Flayer colony. Here, you must choose to fully embrace the Illithid powers by consuming more parasites. This will unlock advanced Illithid abilities and further integrate you into the Mind Flayer hive mind. Be cautious, as this decision will have significant consequences for your character and your companions. Some companions may disapprove of your choices, so it is important to manage your relationships carefully. For example, Lae'zel and Shadowheart may react negatively if you fully embrace the Illithid powers, while Astarion and Gale may be more accepting.

As you progress into Act 3, you will face the final decision that determines the secret ending. When you reach the climax of the story, you will be given the option to fully transform into a Mind Flayer. This choice is only available if you have consistently embraced the Illithid powers throughout the game. To achieve this, you must pass a series of high-difficulty Wisdom and Intelligence checks. These checks are easier to pass if you have built your character with high scores in these attributes and have invested in abilities that boost your mental stats.

Important tips and considerations include managing your party's reactions to your choices. Some companions may leave or turn against you if you fully embrace the Illithid powers, so it is important to balance your decisions with their approval. Additionally, make sure to save your game frequently, as some choices can lead to unexpected consequences. Common mistakes to avoid include resisting the Illithid powers too often, which can lock you out of the secret ending, or failing to build your character's mental stats, making it difficult to pass the necessary checks.

Advanced techniques involve optimizing your character build for Illithid powers. Consider playing as a class that benefits from high Intelligence and Wisdom, such as a Wizard, Cleric, or Druid. These classes have abilities that synergize well with the Illithid powers and can make it easier to pass the required checks. Additionally, focus on acquiring items and equipment that boost your mental stats or provide bonuses to saving throws.

In terms of D&D rules, the Illithid powers in Baldur's Gate 3 are based on the Mind Flayer abilities from the 5th Edition ruleset. These include powers like Mind Blast, which deals psychic damage and stuns enemies, and Dominate Person, which allows you to control an enemy's actions. Understanding these abilities and how they function in the game can help you make more informed decisions and optimize your character's effectiveness.

Specific examples and scenarios include the encounter with the Githyanki in Act 1. When you meet the Githyanki patrol, you can use your Illithid powers to intimidate them and avoid combat. This not only demonstrates your willingness to embrace the parasite but also sets the stage for future interactions with the Githyanki. Another example is the confrontation with the Absolute in Act 2. Here, you can use your Illithid powers to dominate the Absolute's followers and gain their allegiance, further solidifying your connection to the Mind Flayer hive mind.

In conclusion, unlocking the secret ending with the Illithid in Baldur's Gate 3 requires a consistent commitment to embracing the parasite's powers and making choices that align with the Mind Flayer agenda. By building a character with high Intelligence and Wisdom, managing your party's reactions, and optimizing your use of Illithid abilities, you can achieve this unique and intriguing ending.