Buy The Caligula Effect: Overdose Steam Key

PC
The Caligula Effect: Overdose cover

A The Caligula Effect: Overdose Steam Key — also known as a CD Key or digital code — is the official activation code you redeem on Steam and keep in your library permanently. From €49.99 at Greenmangaming · 4 verified stores, 5 offers in stock · Updated 01h 24min ago.

Historical prices
Medium price
Current minimum price
No payment fees With payment fees
Coupon
GCKG2AK5N2G -15% copy Copied!
Store G2A
Global Icon
Region Global
Steam Gift
Product type Steam Gift
Standard
Edition Standard
Description Icon
Fees +€0.19

How much does The Caligula Effect: Overdose for PC cost right now?

The Caligula Effect: Overdose for PC starts at €49.99 at Greenmangaming, a Steam key.

Only 5 offers across 4 stores carry it, and thin supply means the price barely moves.

Steam Key
€49.99
Stays on your account for good
Steam Gift
€64.19
Pricier and more likely to fail

Is it worth buying the Steam Key for The Caligula Effect: Overdose now or waiting?

That €49.99 key is expensive for what it usually costs.

  • Those €49.99 are 207% above what it usually costs, measured on the store price.
  • Only 3 stores sell the Steam Key, and with that little competition the price barely moves.
  • Across the 1,489 days we have tracked it, it has only been pricier than today on 0 days. The lowest it has ever cost is €5.99.
If you do not need it today, waiting pays off: we have seen it at €5.99 and right now you would pay €44.00 more. We will tell you the day it drops.

Worked out from 1,886 daily records of the Steam Key for The Caligula Effect: Overdose across 9 stores. See the full price history.

The price does not include each store's payment fees. The percentage is measured on the store price, without coupons, because that is how we record the history. The analysis only counts Key offers. Shared accounts, Steam Gift and physical editions stay out, because they are not the same product and their prices move differently.

Which The Caligula Effect: Overdose format should you buy?

By format: Steam Key from €49.99 and Steam Gift from €64.19.

Which The Caligula Effect: Overdose editions are on sale?

Beyond the standard edition at €49.99, there is the Limited at €79.07 at Greenmangaming, €29.08 more. Check on the store what each one adds before paying the difference.

Can you activate The Caligula Effect: Overdose in US?

All 5 offers are Global, so the code redeems on any account no matter where it was created.

Is The Caligula Effect: Overdose worth it?

Critics landed at 60 out of 100 across 44 reviews, with 19% of them recommending it.

Attention: This version of The Caligula Effect: Overdose is for PC and in digital version in key format, cd key or Steam Gift. The digital versions of PC games are in the form of a key or cd key, which must be entered into a Steam account to proceed with the download of the game. Some shops may have the "Steam Gift" label which means that an activation link will be sent instead of a cd key.


The Caligula Effect: Overdose places us in an idyllic world that exists for people to forget the pain and problems of reality. In this world reality and fantasy have become blurred, allowing people to relive their high school years constantly. However, in this apparently beautiful and perfect world, something is wrong.


A manga-style RPG game in which we'll have new scenarios, endgames and much more available. We'll also have access to two new GoHome Club members, each with their new Ostinato Musician to face. The combat system is very original, although in turns, which does not make it lose depth. The world will offer us the opportunity to meet up to 500 students in this imaginary paradise to improve your skills in battle and finally return to reality.

Most common FAQs when buying The Caligula Effect: Overdose for PC in digital format:

It is a key that will allow you to download the game The Caligula Effect: Overdose on your PC from official download platforms.
As of 23/08/2026, in United States, the best price we have found in our selection of online stores that include the key for The Caligula Effect: Overdose on PC is €49.99.
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 The Caligula Effect: Overdose to your game library. The account format requires more complicated steps and is more prone to errors during activation.
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 The Caligula Effect: Overdose, and they will provide a new key. You can also contact us, and we’ll help you out.
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.
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.

What do our users think of The Caligula Effect: Overdose for PC Digital?

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