Free McKinsey Sustainable Futures Lab simulator
Start SFL Classic free with no account; a free account (no card) finishes the 13 decisions and shows your score and review. The run uses a 20-minute advisory clock. US$29 unlocks all 11 SFL Classic simulations and SFL Island, or US$79 for all 41 Solve simulations.
Step-by-step PDF guide: free preview with a free account, full guide US$19 or included in the SFL pack.
Start SFL Classic free
| Time | 20 minutes on an advisory Simulation clock |
|---|---|
| Format | 13 linked decisions on one project: order the work, set measures, handle conflict, repair and make the scale call |
| Scored | One ranking and twelve situational decisions, scored out of 13 |
| Free | Start with no account; a free account (no card) finishes the run and shows your score, where points went and worked answers, with decision and dependency diagrams |
| Pack adds | 11 Classic and 10 Island simulations (21 in all, free runs included), the full PDF guides, Learning mode with step-by-step coaching and untimed practice, permanent access, one payment |
Try one SFL ranking
A city runs 3 after-school centres and expects a heat alert in 36 hours, with 2 coordinators. The objective is to reduce children's exposure during the alert. An approved cooled hall exists, but its capacity and route are unchecked, and no retrofit can be approved in time.
| Action | Needs first | Work |
|---|---|---|
| A. Verify which rooms are hottest and confirm the cooled hall capacity | Nothing | 3 hours, 1 coordinator |
| B. Open the approved cooled hall and move the exposed group | A | 6 hours, 2 coordinators |
| C. Send families the confirmed hall, route and update time | B confirmed | 2 hours, 1 coordinator |
| D. Add temporary shade to the outdoor waiting area | A | 8 hours, 2 coordinators |
| E. Commission a permanent roof retrofit | New approval | 120 hours, 2 coordinators |
Question. Rank the five actions from first to last.
See a defensible order
A → B → C → D → E: verify rooms and hall, open cooled hall, send confirmed plan, shade waiting area, retrofit roof. Each action comes after what it needs, the cooled hall protects children during the alert, and the roof cannot finish in 36 hours. This is a teaching answer, not a McKinsey key.
Questions about free SFL Classic practice
Which McKinsey Solve invitations include this lab?
Candidates report the standard Sustainable Futures Lab, about 20 minutes, in 85-minute invitations. The newer 30-minute lab is reported in 95-minute invitations; it is SFL Island here, with its own free run.
Do I need an account to play?
Not to start: you begin SFL Classic with no account. A free account (no card) finishes the 13 decisions and shows your score and the review of your right decisions and biggest miss.
What does the pack add?
The US$29 SFL pack unlocks all 11 SFL Classic simulations and all 10 SFL Island practices, the full step-by-step PDF guides and Learning mode, with one payment. The US$79 Solve pack covers all 41 simulations across the four formats.
Is this the real McKinsey Sustainable Futures Lab?
No. It is original practice built from candidate and prep-site descriptions, not official McKinsey questions. Solve Game Prep is not affiliated with McKinsey; your invitation and the live tutorial set your real modules and timing.
Independent preparation, not affiliated with McKinsey. Original practice content, not official McKinsey questions; practice runs on our own platform. Facts checked .