S.E.M.I. – Side Effects May Include...

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S.E.M.I. is a single-player and co-op action platformer with puzzle elements. Play as patients of an unusual clinic, take experimental drugs, interfere with each other, and be ready for chaos and unpredictable side effects!

Developer: Two Horn Unicorn
Released: 23 Jan 2026
Price: $7.99
Platforms
Languages: English +8
Controller: Full
Series: S.E.M.I.

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Update posts

0 posts

Posts announcing an update, tagged as patch notes or not

Last 90 days · as of 26 Oct, 15:55 UTC

How this is measured

Posts in a game's official Steam news feed that announce an update: tagged as patch notes by the developer, or plainly about a patch or a released update.

News checked every 30 days. Observed since 26 Oct 2026.

An announcement is not a build. Developers can ship updates without a post, or post about several updates at once.
Untagged posts are recognised from their words, so a few updates are missed and a few other posts may be counted. Tagged posts are marked Patch notes on the Updates tab; recognised ones are marked Update.
Older posts are being read back through each game's history, most played games first, so months before October 2026 fill in over the coming days.

Source: Steam Web API, ISteamNews/GetNewsForApp. Full methodology

Announcements

New Patch Is Live! Update
11 Feb 2026 · Community Announcements
S.E.M.I. is officially released!
23 Jan 2026 · Community Announcements
Last Early Access update Update
13 Jan 2026 · Community Announcements
Let's escape to 2026!
30 Dec 2025 · Community Announcements
Observation Journal
24 Dec 2025 · Community Announcements
Crazy Christmas!
18 Dec 2025 · Community Announcements
Intensive Therapy Course
5 Dec 2025 · Community Announcements
Early Access, Patch #1: Hot on the Trail Patch notes
24 Nov 2025 · Community Announcements
Diagnosis: Early Access
20 Nov 2025 · Community Announcements
Demo is closed — Early Access in 6 hours!
20 Nov 2025 · Community Announcements

From the game’s Steam news feed, last checked 26 Oct, 15:55 UTC. An announcement is not a build: games can update without posting. Every public build we saw is on the Builds tab.

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