How many people are playing S.E.M.I. – Side Effects May Include right now?

S.E.M.I. – Side Effects May Include is app 3957560 on Steam. Player counts appear once the tracker has sampled it.

What is the all-time peak player count of S.E.M.I. – Side Effects May Include?

4 concurrent players on 12 Sep 2026.

S.E.M.I. – Side Effects May Include was released on Steam on 23 Jan 2026.

GameApp ID 3,957,560by Two Horn UnicornReleased 23 Jan 2026

WindowsEngine —

App ID3,957,560

Release date23 Jan 2026

Engine—

Install size1004 MB

TypeGame

Last update2 Feb 2026

Steam Deck—

DLC1

DeveloperTwo Horn Unicorn

Changenumber34,988,000

Price—

Packages0

PublisherTwo Horn Unicorn

SystemsWindows

Followers—

Depots1

S.E.M.I. – Side Effects May Include

Steam user reviews

Very Positive

85.7%· 112 reviews

Recent —

SteamPeaks Rating

65.1 Mixed

Recent 30 days —

Last seen

Sampled 15 minutes ago · not a live figure

—of peak

All-time peak

12 Sep 2026

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