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

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The cheapest price is 0.79€ (-90%) at Kinguin with a rating of 4.5 (79.8k reviews) · Version Steam Key · Region Global · We compare prices at 2 verified stores with 2 active offers · Updated on 05/12/2025 07h 27min. ago

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  • We will start the verification process of your account, which may take 48-72 hours.
  • If you have not broken any of our rules, we will send you the cheapest version of the game to the email address associated with your account.
  • In the event that the game is out of stock or only available in a format such as accounts or physical, we will offer the possibility of an exchange for a prepaid card for the minimum value of the game on our platform.
  • For console games, a prepaid card of different amounts will be given instead of the game, due to regional limitations.
  • Your tickets will disappear from your account
  • This promotion is only available to US, UK and EU users.
  • Game redemption is only allowed once every 6 months per user.
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The cheapest offer is from Kinguin in KEY format for a price of 0.79€

Buying at Kinguin saves you 90% compared to the official store

Most users have had positive experiences buying at Kinguin4.5(79.8k) which has an offer with a price of 0.79€

At Gocdkeys our recommendation is to always buy the KEY format, preferably from Instantgaming due to its reliability. If you prefer the account format, which is cheaper, we recommend buying from Difmark.

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Key stores
4.5 (79.8k)
Subscription from 2.99€/month
-15%
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GOC10DEC for -10% Copy Icon Copied!
€0.88 €0.79
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Region Global
Steam Key
Product type Steam Key
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Delivery 5' - 10'
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Fees +€0.06
Official stores
1.8 (3.7k)
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No code available Copied!
€7.79
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Region Global
Steam Key
Product type Steam Key
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Delivery Instant
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About S.E.M.I. – Side Effects May Include...

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!

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!


Everything you need to know to buy S.E.M.I. – Side Effects May Include... for PC at the best price


Assuming we all know what digital versions of games are, which usually come in digital code, key or Steam Key format, let's highlight the 3 most interesting formats for buying S.E.M.I. – Side Effects May Include... for PC in digital format, although there may be others:

-S.E.M.I. – Side Effects May Include... Steam Account: This is an account that contains the game S.E.M.I. – Side Effects May Include... already installed. It's cheaper than the rest, but it may violate certain platform policies, and its activation process is not as straightforward as digital keys.

-S.E.M.I. – Side Effects May Include... Steam Key: It's a cd key that will allow us to activate S.E.M.I. – Side Effects May Include... on our Steam account. It's the most recommended digital version, for its price and ease of activation. If you want to know how to activate this format easily, you can visit our blog with the entire activation process for keys on Steam.

-S.E.M.I. – Side Effects May Include... Steam Gift: It's a URL that will activate S.E.M.I. – Side Effects May Include... on your account and leave everything ready for you to start downloading the game. It's a cheap format with very fast activation, but it has more problems than the other formats.

Our recommendation: Buy S.E.M.I. – Side Effects May Include... for PC in Key or digital code format!

Can I activate the STEAM Key of S.E.M.I. – Side Effects May Include... in my region?


Digital formats of games, and in this case for S.E.M.I. – Side Effects May Include..., often have different activation regions. Currently, at Gocdkeys, we differentiate 4 regions:

Global: Which means you can activate that game anywhere in the world.

EU: You can only activate that digital key in regions or countries within the European Union.

US: It's only possible to activate that code in North America.

UK: It's only possible to activate that key in the United Kingdom.

Our recommendation: Buy S.E.M.I. – Side Effects May Include... in your corresponding region or in Global if you prefer not to take risks!

Are all stores selling S.E.M.I. – Side Effects May Include... for PC reliable?


We have 13 years of experience in the digital gaming market and have always resolved any issues our users have had with any store. So, you should trust us, as we will respond to any problems that arise with any of the stores we list. Just contact us and we will help you.

Most common FAQs when buying S.E.M.I. – Side Effects May Include... for PC in digital format:

  • What is the key for S.E.M.I. – Side Effects May Include... on PC?

    It is a key that will allow you to download the game S.E.M.I. – Side Effects May Include... on your PC from official download platforms.

  • What's the best price for buying the key of S.E.M.I. – Side Effects May Include... for PC?

    As of 05/12/2025, in United States, the best price we have found in our selection of online stores that include the key for S.E.M.I. – Side Effects May Include... on PC is €0.79.

  • Why is the Steam Key of S.E.M.I. – Side Effects May Include... safer than the account format? See more

    The Steam Key format is what we always recommend due to its ease of use and higher security compared to any other format. You just need to redeem the key in your account to download S.E.M.I. – Side Effects May Include... to your game library. The account format requires more complicated steps and is more prone to errors during activation.

  • What issues can arise when activating a Steam Key of S.E.M.I. – Side Effects May Include...? See more

    The only issue we’ve encountered in 13 years is receiving a duplicate key that doesn’t work. In that case, simply contact the store where you bought S.E.M.I. – Side Effects May Include..., and they will provide a new key. You can also contact us, and we’ll help you out.

  • How long will I have to wait to receive the Steam Key of S.E.M.I. – Side Effects May Include... after purchasing it from a store? See more

    Delivery times vary by store. For example, in the case of Instatgaming, Eneba, G2a, or Kinguin, delivery is usually instant or takes just a few minutes. These stores rarely delay game deliveries.

    Other stores may take 30–40 minutes depending on game availability. On release days, delivery times may be slightly longer.

    If you notice an unusually long delay, contact the store or us, and we’ll resolve it as quickly as possible.

  • What guarantee do I have that the listed stores are reliable? See more

    At Gocdkeys, we only list the most well-known stores that have passed our quality checks. One of the most important factors is good customer support, and all listed stores offer it.

    There have been occasions when those services were overwhelmed, which is why we also offer 24/7 customer support to help resolve any issues or questions.

    In any case, we always offer a 100% guarantee, so you won’t have any problems, and if you do, we’ll resolve them as soon as possible.

Need more help? Use our FAQs.

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

Release date 11/20/2025
Users rating
0/5 (0 Comments)
Steam comments 7 user reviews 7 user reviews (7 Comments)
Categories
Action Action
Tags
Indie Multiplayer Singleplayer 3D Character Customization Online Co-Op Physics Early Access Co-op Action

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