McKinsey Sustainable Futures Lab
SFL Guide — Format, Traits & Preparation
Sustainable Futures Lab (SFL) is a scenario-based behavioural module in McKinsey Solve (added April 2026). It evaluates decision-making in ambiguous consulting situations, with emphasis on judgment and consistency rather than quantitative optimisation. SFL is in phased rollout — not every candidate receives it. Below: what it is, how to know if you will see it, and how to prepare alongside Redrock and Sea Wolf.
What is the Sustainable Futures Lab?
The Sustainable Futures Lab (SFL) is a scenario-based module within the McKinsey Solve digital assessment. Candidates work through environmental research–style scenarios (for example coastal habitat recovery, air quality, or wetland restoration). The science context is backdrop — the assessment target is decision logic, not domain knowledge.
At a glance
- Duration 20 minutes
- Questions 13 sequential questions
- Structure Drag-and-drop priority ranking, then scenario-based multiple-choice decisions
Key Differences from Redrock and Sea Wolf
Redrock and Sea Wolf emphasise quantitative optimisation and constraint logic. SFL is closer to a situational judgement exercise with interconnected decisions: your choices influence scenario progression, and evaluators look for reasoning consistency across steps.
| Module | Focus | Nature | Skills tested |
|---|---|---|---|
| Red Rock | Resource allocation and optimisation | Quantitative simulation | Numerical reasoning, planning, optimisation logic |
| Sea Wolf | Ecosystem balancing and constraint logic | Rule-based system | Logical reasoning, constraint satisfaction, systems thinking |
| SFL | Judgment and decision-making | Behavioural simulation | Prioritisation; working with ambiguity; teamwork & stakeholder management (see below) |
Why it feels different
- Interconnected decisions — later options depend on earlier choices
- Information revealed progressively; prompts require interpretation, not calculation
- Often no obviously perfect answer — trade-offs between impact, feasibility, timeline, and stakeholders
- Occasional focus on team dynamics and stakeholder implications
Will You See SFL in Your Assessment?
SFL is not yet standard across all McKinsey Solve assessments. The most reliable indicator is the total time stated in your invitation email.
Additional Signals
- SFL appears to be in a phased rollout — not all candidates receive it.
- Candidate reports place it most frequently in Europe and the Middle East.
- Which modules appear can vary by region, role, and recruiting cycle.
- McKinsey may specify modules in the assessment instructions — read these carefully.
Preparation note: If you are unsure, prepare primarily for Redrock and Sea Wolf. SFL's shorter duration (20 min) and intuitive format mean it will carry proportionally less weight in the overall assessment outcome.
Question Format
- Opening: Mission briefing with team and project context — read carefully; it establishes constraints and priorities.
- First question: Drag-and-drop ranking (prioritise objectives or action items).
- Subsequent questions: Multiple-choice as the scenario evolves — information appears progressively; decisions build on prior choices.
Most prompts have no single “perfect” answer. Performance is assessed on how you reason through trade-offs and stay consistent across the flow.
Three Practice Traits
McKinsey does not publish an official SFL scoring rubric. Across our guides and the in-app SFL simulator, we use three practice traits as a shared language for debriefing: they mirror situational judgement (trade-offs, incomplete information, group dynamics) and match the feedback dimensions in Solve Games Guide practice — not a claim about McKinsey’s internal labels.
1. Prioritisation
Identifying what matters most when objectives compete and time is limited — including the opening drag-and-drop ranking and ongoing trade-offs as the scenario unfolds.
2. Working with ambiguity
Moving forward responsibly when information is incomplete or shifting: interpreting messy details without treating the module as a calculation exercise, and balancing action with adaptability as new information appears.
3. Teamwork and stakeholder management
Noticing how decisions land with different stakeholders and within the team — inclusion, friction, and alignment when multiple groups or voices are in play.
How to Prepare for SFL
Most candidates find SFL the most intuitive of the three modules. It rewards clear thinking over memorised frameworks. If prep time is tight, Redrock and Sea Wolf still deserve the bulk of it — SFL needs less specialised drilling.
Run the SFL simulator (timed)
Practice the full 20-minute flow with 13 questions in one sitting. Complete runs within the mission timer so pacing matches test conditions.
Open SFL practice (free)Maintain consistent reasoning
Your approach across multiple steps matters more than any single answer. Identify key factors before deciding, define criteria to compare options, and balance impact, feasibility, and risk.
Supplement with general SJT-style practice
Broader situational judgement practice helps with evaluating options under uncertainty and stakeholder impact. It should complement — not replace — timed full-length SFL runs.
What not to do
- Memorise rigid frameworks
- Over-prepare SFL at the expense of Redrock and Sea Wolf
- Study environmental science — context is a vehicle for judgement, not a knowledge test
Keep Redrock and Sea Wolf as the priority
Redrock (35 min) and Sea Wolf (30 min) account for 65 of 85 minutes when SFL is included, and are more technically demanding. Strong performance there typically matters more than marginal gains on SFL alone.
Scoring (Current Understanding)
McKinsey does not publish how SFL is scored. Unlike Redrock and Sea Wolf, there is no known “optimal solution” or public score calculator. Evaluation likely emphasises reasoning patterns and consistency rather than discrete right/wrong keys.
Likely dimensions (inferred from format and reports):
- Consistency of reasoning across interconnected decisions
- Appropriateness of priorities given stated constraints
- Balance between competing objectives
- Quality of trade-off analysis
During the Test
Execution
- Use the mission briefing to anchor constraints and priorities.
- On ranking questions, align with what the scenario emphasises (timeline, budget, stakeholder buy-in, quality).
- Hold a consistent decision framework — avoid second-guessing earlier choices without new information.
Mindset
- Think like a junior consultant on a project team.
- Clear judgement beats hunting for a hidden optimal path.
- Extreme choices (all speed, no quality) rarely match consulting norms — balance matters.
Current Limitations
As of April 2026: SFL remains in phased rollout; scoring is not public; candidate sample sizes are still limited; there is no verified score correlation data we can share.
We offer the in-app SFL simulator for free because we are not comfortable charging for a module where evaluation mechanics are still opaque.
Summary
SFL is a 20-minute, 13-question behavioural module focused on situational reasoning — not quantitative optimisation or constraint puzzles like Redrock and Sea Wolf. Prepare with timed simulator runs, structured thinking habits, and consistency across decisions. Keep most of your prep budget on Redrock and Sea Wolf, which remain the primary technical focus of the assessment.
Frequently Asked Questions
Related: Redrock and Sea Wolf Guides
Redrock and Sea Wolf account for 65 of the 85 minutes in a full McKinsey Solve assessment and require dedicated preparation. Read the full strategy guides for each module.
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