Best McKinsey Solve Prep Tools and Simulators for 2026

Simulators are the highest-impact category for Solve prep specifically — they're the only format that produces the pattern fluency and habit calibration that actually move scores. Two players matter in 2026:

Try each game directly: Sea Wolf Game · Red Rock Study · SFL.

We build one of the tools compared above, so here is the other half of the pitch — the things our product genuinely does not do. If any of these is your bottleneck, another option on this page is the better buy.

• We are not McKinsey and we don't have their scoring model. Our scoring is our own reconstruction from the published format and candidate reports. It tells you where you're strong and weak; it is not an official predicted result.
• No live human feedback. Every piece of feedback is automated. If you need someone to watch you work and diagnose habits — common on a retake — a coach does that and we don't.
• No case-interview curriculum. We cover the Solve assessment only. Structuring, market sizing, and the personal experience interview are not in scope — that's what the course-first tools below are for.
• We can't promise you'll see these exact scenarios. Our seeds are generated to match the mechanics and difficulty of the real mini-games, not copied from them. Practising here builds pattern fluency, not memorised answers.

IGotAnOffer, RocketBlocks, MConsultingPrep, and Hacking the Case Interview all fall into this bucket. They're built around video lectures, structured reading, and case interview drills — not around Solve simulation.

Where they win: if you need full consulting interview prep (case-style fit + behavioural + Solve), a single course can cover the whole journey more efficiently than buying point solutions.

Where they don't: for Solve-specific prep, video content is no substitute for actually playing the mini-games under timer pressure. Courses are a weak primary tool for Solve and a fine complement to a simulator.

If you go this route, use the course for theory and pair it with at least one simulator free play. The digital assessment guide covers the 2026 format end-to-end if you want a free orientation first.

You can get a long way for $0. The catch is knowing which free resources are worth your time and which actively hurt you.

Worth it: the SolvePrep free tier (1 play per game), the guide content on this site (entirely free), the free PSG simulation guide, and a small handful of Reddit threads where 2024–2026 candidates describe their actual experience.

Skip: YouTube playthroughs from 2019–2022. They're nearly all of the old Imbellus Ecosystem Building game (different mechanics — food chain, not microbe selection). Watching them trains habits you'll have to unlearn.

If your budget really is $0, do the diagnostic free play, read the guide, and run the free plays one more time the week of your assessment. That's a 70%-of-the-way prep for nothing.

1:1 coaching with an ex-McKinsey consultant typically runs $200–500/hr. It is genuinely high-value in two specific cases — and over-spend in most others.

Worth it for:

• Retakes. A coach can diagnose what went wrong on attempt one in a way no simulator can — especially behavioural or pacing issues that don't show up in automated scoring.
• Behavioural prep alongside Solve. Coaching is the right tool for the case-style fit and PEI components that come before and after Solve in the McKinsey process.
• Risk-averse premium buyers. If the offer is genuinely life-changing and you have the budget, the marginal score gain from 2–3 coach sessions on top of a simulator is positive.

Not worth it for: first-attempt candidates on a budget, time-crunched candidates (no scheduling room), and anyone who hasn't yet done a diagnostic free play — you'd be paying a coach to diagnose what 90 minutes of free practice would tell you.