Lastly updated in August 2025, our McKinsey Solve Simulation reflects the latest assessment. It includes the two current games, Redrock Study and Sea Wolf, as well as Ecosystem Creation (phased out as of July 2025) for bonus practice. Check out our videos below to see our interactive simulation for each of these games.

Redrock Study (2025 Current Version)
Work through 7 full-length scenarios, each with both study and case sections. The difficulty and themes closely match the actual test, with a strong focus on ecosystem-related reasoning. We’re adding 1 new Redrock Study scenario to our library every week.

Sea Wolf (2025 Current Version)
The newest addition to McKinsey Solve. Our version is fully dynamic, so you can practice unlimited times and always encounter a different scenario.

Ecosystem Creation (Phased Out as of July 2025)
Fully dynamic, with species’ calories needed and provided, food sources, and predator relationships changing each time you play. It gives you access to an unlimited number of unique scenarios. While no longer part of the official McKinsey Solve, it remains in our simulation in case McKinsey reintroduces this game.

Our McKinsey Solve Simulation has helped hundreds of candidates pass the game with confidence. Since launching our refund campaign on February 2, 2025, only 2% of users have requested a refund after performing below the top 25%. Our simulation prepares you well for the real assessment.

It's also risk-free. If you don’t place in the top 25%, we’ll refund 50% of your initial purchase fee. Just forward us the confirmation email from McKinsey.

To see the simulation in action, you can watch our detailed walkthrough videos on YouTube, where we break down:

• The logic and structure behind each game

• Sample gameplay using our simulation

• Key strategies to improve your performance

Experience the first few minutes of the Sea Wolf game through our free interactive demo below. You can go through the full tutorial, then start the first task by selecting two microbe characteristics based on your current site information. After clicking Next, you’ll move on to categorizing microbes, where you’ll classify three microbes in the demo version.

When you purchase the full simulation, you’ll unlock the complete set of Sea Wolf scenarios, gain full access to Redrock Study and Ecosystem Creation, and receive detailed feedback on your performance.

Tip: Refresh this page to see a new scenario in the demo each time, just like in our full Solve simulation.

Have a question about your preparation, the assessment, or the refund process? Email us at team@prepmatter.com; we guarantee a response within 8 hours.

Our refund policy supports candidates who do not achieve competitive McKinsey assessment scores. McKinsey typically reports results in one of two formats: decile rankings (1st through 10th decile) or numerical scores (typically ranging from 470 to 540).

Eligibility Criteria
You are eligible for a refund if:
i. Decile-Based Determination (Primary Method): Your score is in the 7th decile or below. Scores in the 8th, 9th, or 10th decile are not eligible.
ii. Score-Based Determination (Alternative Method): If McKinsey provides only a numerical score, you are eligible if your score is 510 or below. Scores of 511 or higher are not eligible.
iii. Purchase Date Requirement: The guarantee applies only to purchases made on or after February 5, 2025.
iv. Submission Deadline: You must submit your results to us within two months of purchase to be eligible.

Documentation Requirements
Refund requests must include the official McKinsey communication showing your assessment results. Acceptable proof includes screenshots, forwarded emails, or other official documentation from McKinsey.

Just forward the email to team@prepmatter.com, and we’ll take care of the rest.

Get an inside look at the Sea Wolf game - also known as Ocean Cleanup or Ocean Treatment - the newest addition to the 2025 McKinsey Solve Game (Problem Solving Game). In this in-depth video, we walk you through the full gameplay using Prepmatter’s interactive simulation, explaining how to:

• Understand the Sea Wolf game structure and objectives

• Select and categorize the right microbes to clean up contaminated sites

• Apply strategy to choose the optimal combination

• Understand how scoring works and maximize your score 

This is the most detailed and accurate guide available for tackling the Sea Wolf game in 2025.

Dive into the McKinsey Solve (Problem Solving Game) with our detailed guide, featuring exclusive in-game footage from Prepmatter's interactive simulation. Our video offers a comprehensive look into the game's structure, covering the Ecosystem Creation (including both Mountain Ridge and Coral Reef scenarios), the Redrock Study, and the Plant Defense game. 

For the Ecosystem Creation game, we break down the general layout and share key eating rules and strategic tips on selecting the optimal location to establish a sustainable ecosystem, supplemented with practical examples. This segment is designed to equip you with the knowledge needed to navigate through the complexities of ecosystem management.

The Redrock Study, a newer addition to the Solve game, receives an in-depth analysis across its Study and Cases sections. We dissect the Investigation, Analysis, and Report phases, providing in-game visuals to demystify the game's setup. Our guide includes best practices for gathering relevant data points, performing accurate calculations, and effectively summarizing findings in both written and graphical forms. Additionally, we delve into the Cases section, where you'll encounter 6 mini-cases, offering insights into what to expect and how to approach each scenario.

Although the Plant Defense game has been largely replaced by the Redrock Study, we haven't overlooked it. Our guide presents the game setup, detailing essential strategies for terrain transformation and the deployment of animals to defend the native plant. Through strategic advice, we aim to help you extend the plant's defense for as long as possible.

Dive into the comprehensive gameplay experience with our brand-new video guide! We're excited to unveil the first complete walkthrough of the McKinsey Problem Solving Game in the market, providing an unmatched practical learning opportunity. Follow along as we navigate through the intricacies of Ecosystem Creation, Redrock Study, and Plant Defense.

In the Ecosystem Creation section, discover how to identify the optimal habitat, select a balanced group of species, and employ strategies that pave the way for a thriving ecosystem. Progressing to the Redrock Study, we dissect the study and case phases of the intriguing Nolotiles scenario, exclusively provided through Prepmatter. Concluding with Plant Defense, our guide imparts tactics for positioning animals and barriers to safeguard the native plant.

Prepmatter's McKinsey Solve Game simulation is an independently developed training tool designed to help you prepare for the McKinsey Problem Solving Game. It is not an official McKinsey product, nor is it endorsed or sponsored by McKinsey & Company. While our simulation offers a similar gameplay experience and covers comparable skills, the scenarios, content, and interface are unique to Prepmatter. Prepmatter is not liable for any outcomes related to the actual McKinsey Solve Game based on the use of this simulation. By purchasing this product, you acknowledge that you understand this simulation to be for educational purposes only.