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

Where can you buy the cheapest S.E.M.I. – Side Effects May Include... key for {6}? Check and compare prices from 1 stores among 1 offers on XD.deals. The lowest S.E.M.I. – Side Effects May Include... price on keyshops is at C$10.49 (0% off).

Release: 23 Jan. 2026
Keyshops
Unavailable
Buy in Official Store:
C$10.49
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Official Stores (1)

DRM:
Steam
Steam
Steam
S.E.M.I. – Side Effects May Include...
Windows
5d ago
DRM:
Steam
Steam
C$10.49

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

S.E.M.I. – Side Effects May Include... - about the game
Escape a special clinic in this cooperative online indie action game with up to three friends. Play as patients who brawl against staff and other patients amid brutal platforming, obstacles, puzzles, and deadly traps. Pop side-effect pills for wild abilities like bipolar force that shifts you from invulnerable monster to helpless rag, laser astigmatism with erratic aiming, Stendhal syndrome that triggers hysterical destruction from viewing art, or Alice's syndrome that resizes you tiny or gigantic. Voice chat to coordinate through randomly generated rooms featuring changing gravity, moving walls, and surprises, while using close combat, physics, and imagination. Madness mode makes abilities uncontrollable until you take more pills. Clumsy teams face sabotage risks in this mental hospital lottery of powers, perfect for friends who thrive on chaotic teamwork challenges.

S.E.M.I. is a cooperative online game about escaping from a special clinic. Here, you and up to 3 of your brainless loyal friends play as patients, fighting staff and other patients while stumbling into all sorts of unexpected situations.Β Brawls, side-effect pills, and brutal platforming will absolutely challenge your clumsy friends’ hands sense of teamwork.Β Expect obstacles, puzzles, deadly traps, and rooms where a single wrong move can knock out the entire squad.

Communicate in voice chat and arrange sabotageΒ help your friends pass through rooms, get out of traps and fight with opponents! In your arsenal: close combat, physics, amazing abilities and ... imagination!

Take pills and get abilities:

  • Bipolar force is an invulnerable monster, then a helpless rag!

  • Laser astigmatism β€” two sights, one laser… Where will he shoot?

  • Stendhal syndrome β€” are you looking at a painting? Now you're hysterical and destroying everything around you!

  • Alice's syndrome is either tiny or gigantic β€” have time to adjust!

Madness is near! You and your friends can go crazy and start running, jumping and fighting, and your abilities will become uncontrollable. Do you want to take back control? Take the pills :)

Locations are randomly generated from rooms with changing gravity, traps, moving walls, and other "pleasant" surprises.

After a successful escape, you will receive a medical report: "The patient was stable until he started hitting the guards with a bottle. Diagnosis: Overmotivation" or something worse!

Unlock new costumes and decorations. Let each new escape be more stylish than the previous one!

Will you and your friends be able to escape... or at least not go crazy?

Welcome to the mental hospital! Here, your abilities are a lottery, and your friends can be the most dangerous opponents!

Interface:
GermanEnglishSpanish - SpainFrenchJapaneseKoreanPortuguese - BrazilRussianSimplified Chinese

Age rating

Unavailable

Minimum:

  • OS: Windows 10
  • Processor: Intel Core i5 series or Ryzen series
  • Memory: 8 GB RAM
  • Graphics: GTX 960 or AMD R9 290
  • DirectX: Version 11
  • Storage: 3 GB available space

Recommended:

  • OS: Windows 11
  • Processor: Intel Core i7 series or Ryzen series
  • Memory: 8 GB RAM
  • Graphics: GTX 1660 or RX6600
  • DirectX: Version 12
  • Storage: 3 GB available space
Historical low
Price history from official stores
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Price history from keyshops
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FAQ

8 questions

Before you start looking for a cheap S.E.M.I. – Side Effects May Include... key, check the essentials. PC released date: 23 Jan. 2026. Genres: Action, Indie.

Q

Where to buy a cheap S.E.M.I. – Side Effects May Include... Steam key?

Using our price comparison and verified discount codes, you can buy a S.E.M.I. – Side Effects May Include... key for as low as C$10.49. This deal is available at Steam and is among the cheapest offers on the market. All keys listed on XD.deals are delivered digitally and eligible for instant download after payment. Prices already include processing fees and applied promo codes, so you always see the lowest S.E.M.I. – Side Effects May Include... price on PC. Check the S.E.M.I. – Side Effects May Include... price history to buy at the best moment.

As of our last update (we refresh Steam pricing multiple times a day), the S.E.M.I. – Side Effects May Include... Steam price is C$10.49. You can save an extra ~6% by paying with a discounted Steam gift card.

Our price tracker covers both official retailers and key marketplaces, so you can find S.E.M.I. – Side Effects May Include... on sale even outside seasonal promotions. We currently detect 1 active offer from official stores and keyshops. Check the table above, compare against the historical low, and set an alert so you never miss the next price drop.

Based on our data, S.E.M.I. – Side Effects May Include... is not currently available on GeForce NOW. You will need to run it locally on your PC. Browse games available on GeForce NOW.

Yes. S.E.M.I. – Side Effects May Include... has an official page on the Steam Store. You can also buy a S.E.M.I. – Side Effects May Include... Steam key from third-party sellers. Our price comparison currently includes 1 offer with Steam DRM. Pick one to ensure your S.E.M.I. – Side Effects May Include... download happens on Valve's platform.

Not at this time. Valve marks S.E.M.I. – Side Effects May Include... as Unsupported on Steam Deck. Keep an eye on XD.deals - we track Proton updates and community fixes. Browse games that are Steam Deck Verified or Steam Deck Playable.

S.E.M.I. – Side Effects May Include... does not appear to be available on PC Game Pass, EA Play, Ubisoft+ or any other PC subscription service at this time. Your only option is purchasing the game - use XD.deals to find the best price.

No - XD.deals is not a store. We are a price-comparison service that tracks the best S.E.M.I. – Side Effects May Include... deals across official stores and verified keyshops. Click "Go to Store" next to any offer and you will be redirected to the retailer's website to complete your purchase.

Best prices for S.E.M.I. – Side Effects May Include...

1 Steam Steam Official
C$10.49

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