Underplayed Gems

S.E.M.I. – Side Effects May Include... (2026)

S.E.M.I. – Side Effects May Include... cover
Developer
Two Horn Unicorn
Platforms
Windows
Genres
Action, Indie
Rating
4.3 of 5, 111 player ratings
Typical playtime
about 2.0 hours
Where to get it
Steam

How it feels

A brisk, modern action game with arcade-style movement and clean visual feedback.

actionfast-pacedindiearcade-likeenergeticmodernside-scrolling

What players say

Players recommend it for co-op chaos and silly pill-based abilities, but warn that motion blur cannot be fully disabled and the campaign is only about an hour long.

Screenshots

S.E.M.I. – Side Effects May Include... screenshot 1S.E.M.I. – Side Effects May Include... screenshot 2S.E.M.I. – Side Effects May Include... screenshot 3S.E.M.I. – Side Effects May Include... screenshot 4S.E.M.I. – Side Effects May Include... screenshot 5S.E.M.I. – Side Effects May Include... screenshot 6

More games like this

This page is from Underplayed Gems, a catalog of older and overlooked games. Not quite it? Tell the Catbot what you feel like playing and it picks from the whole catalog, or browse by platform and genre.