Buy Ad Infinitum Steam Key
Ad Infinitum Steam Key: compare prices from 41 offers (November 2026)
An Ad Infinitum 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 €0.93 (€0.97 with fees, -95%) at Difmark, Steam Account format · Cheapest official key: €1.79 (no fees), 91% below the €19.99 (no fees) Steam price · 23 verified stores, 41 offers in stock · Updated 01h 21min ago.
Steam Key
Steam Account
Prices change depending on the selected payment method.
Final prices with fees
How much does Ad Infinitum for PC cost right now?
Ad Infinitum for PC starts at €0.93 (€0.97 with fees) at Difmark, 95% under the €19.99 (no fees) of the official store — but that is a shared account, not a key of your own. If you want a key tied to your own account, the cheapest is €1.79 (no fees) at Instant Gaming.
That €0.93 (€0.97 with fees) already includes the Gocdkeys coupon, so apply it at checkout or the store will show you a higher price.
23 of our 45 verified stores fight over this one with 41 offers between them, and that is why the price keeps sliding rather than holding.
That puts it 9% under its average of €1.96 since 2023, so today is a better entry point than most days of its life.
Shared account
Steam Key
Steam Gift
Is it worth buying the Steam Key for Ad Infinitum now or waiting?
That €1.79 (no fees) key is at its usual price: no bargain, no spike.
- Those €1.79 (no fees) are 9% below what it usually costs, measured on the store price.
- 20 stores sell the Steam Key at the same time, and with that much competition the price moves almost daily.
- Not counting today, 223 days out of the 490 days on record were this cheap or cheaper; the lowest it has ever cost is €1.05.
Worked out from 4,040 daily records of the Steam Key for Ad Infinitum across 23 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 Ad Infinitum format should you buy?
With the shared account at Difmark you log into an account that already owns the game: it is the cheapest route, but it never becomes yours and the seller keeps the credentials. If they ever lose or change them, you lose access.
The key at Instant Gaming costs €0.86 (€0.82 with fees) more, but you redeem it on your own account and the game stays there for good. That is the difference between renting and buying.
The 2 Steam Gift offers are pricier than the key and leave more room for error, because they depend on the region and on Steam friendship.
Which Ad Infinitum editions are on sale?
Beyond the standard edition at €1.79 (no fees), there is the Supporter at €3.25 (€3.77 with fees) at Driffle, €1.46 (€1.98 with fees) more. Check on the store what each one adds before paying the difference.
Can you activate Ad Infinitum in US?
31 of the 41 offers work on US — the Global ones plus the ones issued for your own region.
Is Ad Infinitum worth it?
23 outlets reviewed it and it averages 69 out of 100, with 23% recommending it.
Why is there such an expensive Ad Infinitum offer?
One listing is worth ignoring: the Steam key that GamesPlanet has at €32.42 (no fees) is more than 33 times the cheapest offer and is not what this game costs. The number to work from is €1.79 (no fees) at Instant Gaming.
Most common FAQs when buying Ad Infinitum for PC in digital format:
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.
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.
Ad Infinitum
Is it worth it?
- 70/100Critics' average scoreOpenCritic · Fair
- 23%Critics recommend it23 critic reviews
- 76%Steam reviewsMostly Positive · 1,273 reviews
Is it alive?
- Watching now on Twitch
- Live channels
What the press says
Ad Infinitum tells an engaging and unique story in a great way. To really enjoy it, though, you'd have to be willing to play with... Read more
Ad Infinitum deals in many types of horror, often skewering expectations. Though rough around the edges and packing unremarkable puzzles, the terrifying truths of its... Read more
Ad Infinitum balances engaging gameplay with a deep, dark, and fascinating story that tells a tale of a family torn apart by war. Read more
Ad Infinitum is a little off balance when it comes to how difficult and unfair a few of its challenges are compared to the rest... Read more
Overall, Ad Infinitum doesn’t do its best job showcasing what the experience is all about in the first hour. But, after that, it really takes... Read more
Ad Infinitum very much feels like the kind of horror game that would’ve come out five or ten years ago: lots of slow-moving stealth and... Read more
While there are some impressive elements to like about Ad Infinitum it ultimately lacks a lot of polish and some more compelling gameplay. It's excellent... Read more
What everything adds up to is a game that’s half good. If the more unique and compelling idea of the war was expanded upon, the... Read more
With a unique setting and premise, Hekate's psychological horror certainly stands out, and its various themes are balanced well. Some more polish and gameplay improvements... Read more
A more coherent story and confident use of setting could've helped Ad Infinitum live up to its full potential. The dilapidated mansion, nightmare trenches, and... Read more
While Ad Infinitum's interesting World War I backdrop for a horror game might entice you initially, its lack of polish and uninspired gameplay prevent you... Read more
Although it does not innovate the “psychological horror” genre in any way, Ad Infinitum presents a well-written story that manages to skillfully explore the protagonist's... Read more
After many years of development, Ad Infinitum fails to deliver e great horror experience. The compelling story is not enough to save this project from... Read more
Ad Infinitum is notable for being a psychological horror set against a backdrop of World War I. If you can forgive the derivative gameplay, the... Read more
Ad Infinitum is an ambitious game. You can feel the love and effort of the developers, but it falls far short of the required quality.... Read more
Ad Infinitum is a horror game that manages to create a good atmosphere despite the poorer visuals. Moments of fear cannot be avoided. It is... Read more
About the game
* languages with full audio
Requirements
- Requires a 64-bit processor and operating system
- Windows 10
- Intel Core i5-8400 or AMD Ryzen 5 1600X
- 8 GB RAM
- NVIDIA GeForce GTX 750 Ti, 2 GB or AMD Radeon RX 7850, 2 GB or Intel Arc A380, 6 GB
- Version 11
- 21 GB available space
- Additional Notes: To run at Low 720p @ 30 FPS
- Requires a 64-bit processor and operating system
- Windows 10
- Intel Core i5-10400 or AMD Ryzen 5 3600
- 12 GB RAM
- NVIDIA GeForce RTX 3060, 12 GB or AMD Radeon RX 6650 XT, 8 GB
- Version 11
- 21 GB available space
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