How many people are playing Kerbal Space Program right now?

Kerbal Space Program has 1,881 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 Patches

Update cadence · public branch

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PICS live

1334 days

Since last public build

11 Jan 2023, 14:05 UTC

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Median interval

Usually Wed, 17:00–19:00 UTC

Builds in 30 days

0 with patch notes · 0 unannounced

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Downloaded in 30 days

Quiet · no builds in 30 days

All 21 builds since 2017 · UTC

When Squad ships

Click a cell to filter the builds table

036912151821

Mon

Tue

Wed

Thu

Fri

Sat

Sun

FewerMorePeak cell: Wed 18:00 · 3 builds

Builds per year

20232

20221

20215

20204

20194

20184

All years since 2017

Nothing published yet · from the developer’s Steam news feed

Patch notes

Checked twice a day

This developer has not posted update announcements to Steam, or we have not read their feed yet.

major updatenotes reach back further than our build history, which starts when SteamPeaks began watching the app

Kerbal Space Program

Builds

All public 1.10.1 1.11.1

Major patches only

Date	Day	Time	Patch title	Build ID	Branch	Depots	Download Δ
11 Jan 2023	Wed	14:05	No patch notes · unannounced build	10132464	public	—	—
11 Jan 2023	Wed	14:05	No patch notes · unannounced build	9030866	1.12.4	—	—
2 Nov 2022	Wed	18:02	No patch notes · unannounced build	7646373	1.12.3	—	—
13 Dec 2021	Mon	17:46	No patch notes · unannounced build	7103538	1.12.2	—	—
2 Aug 2021	Mon	22:40	No patch notes · unannounced build