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

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.

Tags: Solo · Co-op, Platformer, Physics, Surreal.

Steam reviews: Mostly Positive (79% of 47).

Price: $7.99.

Released 2026-01-23.

Last updated 2026-02-11.

S.E.M.I. – Side Effects May Include... on Game Goose · Steam store page

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