Activates on Steam. Region: Europe.
Activates on Steam. Region: Global.
S.E.M.I. – Side Effects May Include
Two Horn Unicorn · 2025
Activates on Steam. Region: Global.
In stock at its regular priceIn stock
Delivered to your account, usually within minutes after payment is confirmed.
Card payment on a hosted page with 3-D Secure.
- Replacement or refund if a key doesn't work.
Before you buy
- Platform
- Activates on Steam. You need a Steam account and the Steam app.
- Region
- Global: no regional lockREGION FREE
- Languages
- English, Chinese, French, German, Japanese, Korean, Portuguese (Brazil), Russian, Spanish
- Delivery
- To your account, usually within minutes after payment is confirmed
S.E.M.I. is a cooperative online game about escaping from a special clinic. Here you and up to 3 of your feeble-minded loyal friends in the role of patients fight with the staff and other patients and find yourself in unexpected situations. Teamwork is essential, as randomized events and experimental drugs will lead your party into unpredictable mayhem. Pop pills with your friends as you cooperate to gain your freedom. Communicate in voice chat and arrange sabotage help your friends pass through rooms, get out of traps and fight with opponents! In your arsenal: close combat, physics, amazing abilities and ... imagination! Features: Take pills and get abilities: Bipolar force is an invulnerable monster, then a helpless rag! Laser astigmatism — two sights, one laser… Where will he shoot? Stendhal syndrome — are you looking at a painting? Now you're hysterical and destroying everything around you! Alice's syndrome is either tiny or gigantic — 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!
Redeem on Steam
You need a Steam account and the Steam app.
- Step 1: Open Steam and sign in.
- Step 2: Open the Games menu, then choose Activate a Product on Steam…
- Step 3: Enter the key and follow the prompts.
- Step 4: The game appears in your Library.
Windows
- Minimum
- Requires a 64-bit processor and operating system 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
- Platform
- Steam
- Region
- Global (listed as “REGION FREE”)
- Type
- Base game
- Languages
- English, Chinese, French, German, Japanese, Korean, Portuguese (Brazil), Russian, Spanish
- Developer
- Two Horn Unicorn
- Publisher
- Two Horn Unicorn
- Release date
- 20 November 2025
- Genres
- Action, Indie
- Keyterminus catalogue no.
- KT-BB43901DA3
More on platform 1 · Steam
More action on Steam, in board order.