How many people are playing Kerbal Space Program right now?

Kerbal Space Program has 3,066 players on Steam right now, with a 24-hour peak of 4,526 and an all-time peak of 23,459 on Apr 2026.

What is the all-time peak player count of Kerbal Space Program?

23,459 concurrent players on Apr 2026.

When was Kerbal Space Program released on Steam?

Kerbal Space Program was released on Steam on 27 Apr 2015.

Kerbal Space Program Reviews

Steam user reviews · 146,629 written

Updated 19 hours ago

SteamPeaks Rating

95.6

Overwhelmingly positive

Positive share

95.6%Overwhelmingly Positive

Last 30 days

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No reviews in the last 30 days

Played before writing

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Sampling starts with the review poller

Reviews per day

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From Valve’s daily histogram

How sentiment moved · share of new reviews that were positive

Awaiting the histogram

Not enough samples yet. The line appears once a few readings are in.

Positive shareReviews writtenLifetime shareDrag across the chart to zoom · double-click to reset

Data by SteamPeaks.com

The review sampler has not reached this game yet

Who is reviewing

Playtime at the moment each review was written

The review sampler works through the most reviewed games first; this one is in the queue.

Month by month

Review history

Exact counts from Valve’s histogram

No histogram yet for this game.

Counts per month and per day come from Valve’s review histogram, so they are exact. Playtime, purchase and language detail come from a sample of the most recent reviews; we keep no reviewer identity and no review text. The SteamPeaks Rating is a confidence-adjusted positive share. How it is computed