April 2026

    How to Practice McKinsey's Sustainable Futures Lab

    This is a how-to-practice guide for McKinsey's Sustainable Futures Lab (also written as the Sustainable Future Lab), not the simulator itself. If you want to run a full timed rep right now, use the SFL simulator — this page walks through what to drill and how to build decision consistency before test day.

    SolvePrep Team April 3, 2026Updated September 27, 202611 min read

    Why a Sustainable Futures Lab Simulator Matters

    If you apply to McKinsey & Company in 2026 and your invite shows 85 or 95 minutes instead of 65, you will face three Solve games. One of them is the new Sustainable Futures Lab (SFL).

    A 95-minute invitation carries a longer, 30-minute version of the game; here's what changes in the 95-minute version.

    This game is different. You won't use spreadsheets or calculations. You work through team scenarios. Each choice changes what happens next.

    That creates a prep gap.

    • For Red Rock Study, you can train data analysis and percentages.
    • For Sea Wolf Game, you can train optimization logic.
    • For SFL, reading tips is not enough.

    You need to experience the decision flow.

    That is the role of the SFL simulator.

    What the SFL Simulator Covers

    Here's what one simulator run includes.

    Game elementSolvePrep simulator
    Mission briefing (overview, team, data, emails)✓ Untimed, before the clock starts
    Priority ranking✓ 4 actions, reviewed against a defensible order
    Connected decisions✓ 12 per run, from a bank of 52
    Connected flow (earlier choices carry into later decisions)✓
    Response formatOne pick from 3–4 options; a most/least drill is also available
    Time limit✓ 20 minutes, or 30 in the 95-minute version
    Post-run feedback✓ Three pillars, lost points by scenario type, ranking and decision review

    The key feature is the connected flow.

    Candidates describe the SFL as one connected storyline in which earlier decisions carry into later ones. The simulator's 20-minute lab is built the same way: each new decision picks up the consequence of your last one, and some scenarios react to the approach you've taken so far. You see how your choices build on each other.

    Unlike Red Rock Study or Sea Wolf Game, SFL has no single correct answer. It measures consistency in judgment across decisions.

    Try the SFL Simulator Free

    Experience the connected decision flow and get behavioral feedback after your session.

    McKinsey Sustainable Futures Lab practice briefing, Data tab: a three-year table of reef health and funding metricsWhere you lost points in a 20-minute SFL practice run, by scenario type, with a coaching line for eachDay 3 intel step in the 30-minute SFL practice: five sealed cards and a budget of two, one already opened
    Start Free SFL Simulation →

    McKinsey doesn't publish pass rates — ~70% reportedly fail

    ✅ 20% higher best run vs. first run•⭐ passing candidates average 8 runs (SolvePrep user data)•🤖 First AI Solve Simulator

    The Four Skills the Simulator Builds

    1. Structured Decision-Making Under Ambiguity

    Each scenario gives you several reasonable options. None is clearly correct.

    The simulator trains you to apply a consistent framework instead of guessing. After each session, you review whether your choices follow a clear logic.

    2. Team Leadership and Collaboration

    You will face:

    • A disengaged teammate
    • A dominant voice
    • A split team

    You decide how to act:

    • Address behavior directly
    • Create space for others
    • Redirect the discussion

    The test rewards effective team outcomes, not politeness.

    3. Consistency Across Decisions

    SFL tracks your choices across the full sequence.

    Example:

    • You push for consensus early
    • Later, you shut down discussion in a similar case

    This weakens your profile.

    The simulator scores consistency as its own pillar, so you can see when your picks drift between styles.

    4. Priority Setting and Sequencing

    The game starts with ranking four actions.

    This tests a core consulting skill:

    • What is urgent
    • What drives impact
    • What depends on what

    The simulator's ranking has four actions, the number candidates report for the real test, and after the run it scores each placement against a defensible order.

    How to Use the Simulator

    Step 1: Define Your Framework

    Before you start, write down how you make decisions in teams.

    Example:

    • Direct vs indirect conflict handling
    • Consensus vs speed

    Keep it short. This is your anchor.

    Step 2: Run One Full Session

    Complete one session without overthinking.

    Follow your framework. Move forward.

    This shows your baseline behavior.

    Step 3: Review Feedback

    Check where your decisions match your framework—and where they don't.

    Focus on contradictions. These matter most.

    Step 4: Refine and Repeat

    Adjust your approach. Run 2–4 more sessions.

    Each run sharpens your judgment.

    Target: 3–5 sessions total

    Step 5: Add Time Pressure

    Run it on the full clock: 20 minutes, or 30 if your invitation says 95 minutes. The timer can't be paused, so treat every run like test day.

    SFL requires careful reading. Missing details leads to weaker choices.

    Time pressure shows whether your approach holds.

    ⚠️ Common Mistake

    Do not try to guess what McKinsey wants. The adaptive design exposes inconsistent answers. A clear and consistent framework performs better than guessing.

    Build Your Decision Framework

    Run 3–5 sessions to develop the consistency the real SFL measures.

    Start Practicing Now →

    McKinsey doesn't publish pass rates — ~70% reportedly fail

    ✅ 20% higher best run vs. first run•⭐ passing candidates average 8 runs (SolvePrep user data)•🤖 First AI Solve Simulator

    SFL Simulator vs Generic SJT Practice

    You can use general situational judgment tests (SJT). They help with basic principles.

    But they miss key SFL features:

    DimensionGeneric SJT PracticeSolvePrep SFL Simulator
    Question formatVaries (often 4–5 options)One pick from 3–4 options, as candidates describe the real test
    Adaptive flowStatic — each question independentConnected — earlier choices carry into later decisions
    ContextGeneric workplace scenariosResearch team context matching SFL themes
    Consistency trackingNot measuredScored across all 12 decisions
    Consulting competency alignmentGeneral leadership principlesMcKinsey-specific competencies
    Time-pressured practiceRarely timed20- or 30-minute clock, matching your invitation

    Best approach:

    1. Learn SJT principles
    2. Apply them in the SFL simulator

    How SFL Fits Into Full Solve Prep

    If your test is 85 or 95 minutes, you will complete three games across the McKinsey Solve simulation suite:

    Red Rock Study (35 min)

    • Focus: data analysis, percentages, case logic
    • Priority: highest practice time

    Sea Wolf Game (30 min)

    • Focus: optimization, pattern recognition
    • Learnable mechanics

    Sustainable Futures Lab (20 or 30 min)

    • Focus: behavioral judgment
    • Train via 3–5 simulator sessions

    Prep Strategy

    1. Start with Red Rock Study and Sea Wolf Game
    2. Add SFL in the final 3–5 days

    This avoids constant switching between skill types.

    Who Should Use the Simulator?

    Use it if your invite shows 85 or 95 minutes.

    SFL appears often in:

    • Germany
    • Middle East
    • Selected regions

    If your invite shows 65 minutes, SFL may not apply yet. Still, one session helps you understand the format.

    Ready to Practice?

    Sign up free and run your first Sustainable Futures Lab simulation today.

    Sign Up Free & Start →

    McKinsey doesn't publish pass rates — ~70% reportedly fail

    ✅ 20% higher best run vs. first run•⭐ passing candidates average 8 runs (SolvePrep user data)•🤖 First AI Solve Simulator

    Frequently Asked Questions

    Final Takeaway

    SFL tests one thing: consistent judgment under pressure.

    You don't prepare it by memorizing answers. You prepare it by applying a clear framework across many decisions.

    The simulator gives you that environment.

    Use it to build consistency before test day.