What is the McKinsey digital assessment?
The McKinsey digital assessment is a browser-based recruiting test McKinsey sends to shortlisted applicants after the initial resume screen and before the first round of interviews. It runs unproctored, takes about 70 minutes, and replaces the traditional pen-and-paper PST that McKinsey retired in 2019.
The product itself has been renamed several times, which is why the same test shows up under different names across blog posts, Reddit threads, and recruiter emails:
- Imbellus (2017–2020) — original ecosystem game, single long case.
- Problem Solving Game (PSG) (2020–2023) — McKinsey's internal name after acquiring Imbellus.
- Solve (2024–present) — modernized version split into 2–3 mini-games.
- "Digital assessment" (2025–2026) — the umbrella term McKinsey now uses in candidate-facing comms.
If you got an email mentioning a "digital assessment," a "Solve assessment," or a "problem solving game," they all point to the same test. The 2026 version is what this guide covers. For the legacy ecosystem-only background, see our free PSG simulation guide or the broader McKinsey Solve practice hub.
Who has to take the McKinsey digital assessment
Almost every candidate who applies to a generalist consulting role at McKinsey will see a digital assessment invite. It's the most consistent step in the funnel — recruiters and offices vary on interview structure, but the digital assessment is a near-universal screen.
The roles below all sit in scope in 2026:
- Business Analyst (BA) — undergraduate and master's, all geographies.
- Associate — MBA, advanced-degree, and experienced hire pools.
- Engagement Manager / experienced consultant — selective, geography-dependent.
- Implementation, Operations, and McKinsey Digital — most offices use the same assessment.
- McKinsey Implementation Coach & specialist tracks — increasingly added in 2025–2026.
The assessment lands after your application is reviewed and before the personal experience interview (PEI) and case rounds. You'll typically have a 5–10 day window from invite to deadline. Geography matters: EMEA and APAC offices have rolled out the three-mini-game Solve version faster than some North American offices, where two-mini-game variants still appear in select cycles.
The 3 mini-games inside the digital assessment
The modern McKinsey digital assessment is built from three modular mini-games. Most candidates see two of them; some offices use all three. Each game targets a different skill cluster — eco system reasoning, quantitative case work, and situational judgment.
Sea Wolf
The ecosystem-building game (direct successor to the original Imbellus case). You read a site brief, select species characteristics, run a filter step, categorize microbes, and build a survival chain — all under a 30-minute timer. Sea Wolf is the most format-stable of the three and the test most candidates feel comfortable practicing for.
Red Rock
A 35-minute mini case study with draggable value cards, exhibits, calculator-driven math, and a final report phase. Red Rock is the heaviest of the three on quantitative reasoning and the one where most candidates lose points — usually by misreading an exhibit or skipping a calculation under time pressure.
Sustainable Future Lab
The newest mini-game (rolled out 2025–2026). A 20-minute situational-judgment scenario with adaptive stakeholder branches, a priority ranking step, and a closing survey. SFL measures judgment under ambiguity — there are rarely clearly 'wrong' answers, but McKinsey is reading process patterns across your choices.
How the McKinsey digital assessment is scored
McKinsey scores the digital assessment on process, not just final answers. That's the single most important thing to internalize before you practice. The platform tracks how you build a solution — what you click, in what order, how often you revisit exhibits, how quickly you commit to a ranking — and feeds those signals into the model alongside the outcomes you produce.
This is why the assessment is unproctored: process signals are extremely hard to fake. A candidate who guesses the right ecosystem chain in the last 30 seconds with no exhibit interactions looks very different from one who arrived at it through a coherent investigation path, even if the final answer is identical.
You will never see your score. McKinsey does not publish a numerical result, a percentile, or written feedback. Internally, candidates are bucketed against the office's rolling distribution; above the threshold you advance, below it you don't. We call this "directional accuracy" framing in our guides — the goal is to demonstrate consistent reasoning across all sections rather than to ace any one screen.
For score-shaping tactics that actually move the needle, see our McKinsey Solve tips guide.
How long is the digital assessment & timing
Plan for ~70 minutes end-to-end. The breakdown:
| Mini-game | Timer | Pause allowed? |
|---|---|---|
| Sea Wolf | ~30 minutes | No |
| Red Rock | ~35 minutes | No |
| Sustainable Future Lab | ~20 minutes | No |
Once a mini-game starts, the timer doesn't stop for browser refreshes, tab switches, or connection blips. McKinsey recommends a quiet 90-minute block, a stable connection, and a laptop rather than a tablet. You can take the games in different sittings — the invite link stays valid across your window — but each individual game is one continuous run.
How to prepare for the McKinsey digital assessment
Most candidates who pass spend 8–15 hours on the assessment specifically — not on generic case prep. The wrong move is to over-invest in MBA-style case frameworks; the digital assessment rewards exhibit fluency, time discipline, and clean reasoning patterns far more than memorized structures.
The 4-week arc that consistently works:
Week 1 — Format read
One free play of each mini-game just to see what the screens look like. Don't optimize. Notice what surprises you.
Week 2 — Targeted drill
Replay your weakest game with full results unlocked. Red Rock exhibits and SFL stakeholder branches are the most common gaps.
Week 3 — Timer pressure
Run each mini-game back-to-back in a single sitting. The fatigue compound is real and almost no one simulates it.
Week 4 — Calibration
One full dress rehearsal under the real ~70-minute envelope. Treat the result as your baseline, not a verdict.
For a week-by-week plan with daily blocks, see our McKinsey Solve prep plan. For a shorter overview of effective study habits, the how to prepare guide covers the basics. And if you're still picking tools, our best McKinsey Solve prep tools for 2026 comparison ranks the major options.
Frequently asked questions
Is the McKinsey digital assessment the same as PSG, Solve, or Imbellus?
Yes — they're all names for the same recruiting test, used at different points in time. Imbellus was the 2017–2020 ecosystem game. Problem Solving Game (PSG) was the 2020–2023 internal name. Solve is the 2024–2026 rebrand, and 'digital assessment' is the umbrella term McKinsey recruiters now use in candidate communications. If you got an email about a 'digital assessment,' it's the Solve assessment.
How long is the McKinsey digital assessment?
Roughly 70 minutes end-to-end in the 2026 format, split across the mini-games you're assigned. Sea Wolf runs ~30 minutes, Red Rock ~35 minutes, and Sustainable Future Lab ~20 minutes. Some candidates get two mini-games, others get all three depending on office and cycle. Timers are strict and there is no pause once a game begins.
Is the McKinsey digital assessment pass/fail?
Effectively yes, but candidates never see a numerical score. McKinsey uses your performance as a screening filter alongside resume and PEI; below a certain internal threshold the application is dropped, above it you advance to interviews. There's no published pass mark, no percentile breakdown, and no written feedback.
Can you retake the McKinsey digital assessment?
Not within the same recruiting cycle. Each invitation gives you one attempt. If you reapply in a future cycle (typically after 12–18 months, depending on office policy), you may be invited to take it again. This is why practice on a realistic simulator before your one attempt matters more than for most tests.
What score do I need to pass the McKinsey digital assessment?
McKinsey does not publish a cutoff. Reported candidate data suggests the threshold sits somewhere around the 60th–70th percentile of all takers for a given office, but the bar shifts by geography, role, and applicant pool strength. Aim to handle the format confidently rather than chase a number you'll never see.
Is the McKinsey digital assessment proctored?
Not in the live-webcam sense most candidates picture. It runs browser-based, unproctored, and McKinsey relies on the assessment's design — adaptive branches, timer pressure, process-level scoring — to make cheating ineffective. The interview round that follows is the real proctoring layer.
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