How many people are playing Cepheus Protocol right now?

Cepheus Protocol has 43 players on Steam right now, with a 24-hour peak of 58 and an all-time peak of 378 on Oct 2021.

What is the all-time peak player count of Cepheus Protocol?

378 concurrent players on Oct 2021.

Cepheus Protocol was released on Steam on 15 May 2020.

GameApp ID 979,640by Halcyon WindsReleased 15 May 2020

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Cepheus Protocol Update History · SteamPeaks

Showing keys matching the filter · 11 events on this page have no match

Time (UTC)SourceWhat changedAddedEditedRemovedReference

6 Sep 2026

15:22:21PICSExperimental manifest changed—~6—#38,646,181

Recorded change · 6 Sep 2026, 15:22:21 UTCView all 6

Status	Key	Previous value	New value
Edited	Build ID on experimentaldepots.branches.experimental.buildid	25127441	25145247
Edited	Build time on experimentaldepots.branches.experimental.timebuildupdated	4 Sep 2026, 15:40:40 UTC1788536440	5 Sep 2026, 20:37:56 UTC1788640676
Edited	Updated time on experimentaldepots.branches.experimental.timeupdated	4 Sep 2026, 16:25:41 UTC1788539141	6 Sep 2026, 15:22:17 UTC1788708137

4 Sep 2026

16:25:45PICSExperimental manifest changed—~6—#38,609,351

Recorded change · 4 Sep 2026, 16:25:45 UTCView all 6

Status	Key	Previous value	New value
Edited	Build ID on experimentaldepots.branches.experimental.buildid	25100274	25127441
Edited	Build time on experimentaldepots.branches.experimental.timebuildupdated	3 Sep 2026, 11:12:41 UTC1788433961	4 Sep 2026, 15:40:40 UTC1788536440
Edited	Updated time on experimentaldepots.branches.experimental.timeupdated	3 Sep 2026, 11:39:51 UTC1788435591	4 Sep 2026, 16:25:41 UTC1788539141

3 Sep 2026

11:39:55PICSExperimental manifest changed—~6—#38,569,757

Recorded change · 3 Sep 2026, 11:39:55 UTCView all 6

Status	Key	Previous value	New value
Edited	Build ID on experimentaldepots.branches.experimental.buildid	25055878	25100274
Edited	Build time on experimentaldepots.branches.experimental.timebuildupdated	1 Sep 2026, 10:40:05 UTC1788259205	3 Sep 2026, 11:12:41 UTC1788433961
Edited	Updated time on experimentaldepots.branches.experimental.timeupdated	1 Sep 2026, 10:40:27 UTC1788259227	3 Sep 2026, 11:39:51 UTC1788435591