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.
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 element | SolvePrep 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 format | One 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.
Start Free SFL Simulation →McKinsey doesn't publish pass rates — ~70% reportedly fail
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
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:
| Dimension | Generic SJT Practice | SolvePrep SFL Simulator |
|---|---|---|
| Question format | Varies (often 4–5 options) | One pick from 3–4 options, as candidates describe the real test |
| Adaptive flow | Static — each question independent | Connected — earlier choices carry into later decisions |
| Context | Generic workplace scenarios | Research team context matching SFL themes |
| Consistency tracking | Not measured | Scored across all 12 decisions |
| Consulting competency alignment | General leadership principles | McKinsey-specific competencies |
| Time-pressured practice | Rarely timed | 20- or 30-minute clock, matching your invitation |
Best approach:
- Learn SJT principles
- 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
- Start with Red Rock Study and Sea Wolf Game
- 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
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.


