Buy Protocol Steam Key
Protocol Steam Key: compare prices from 8 offers (November 2026)
A Protocol 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 €8.79 (no fees) at Greenmangaming · 8 verified stores, 8 offers in stock · Updated 03h 50min ago.
Steam Card 10 €
Steam Key
Prices change depending on the selected payment method.
Final prices with fees
How much does Protocol for PC cost right now?
Protocol for PC starts at €8.79 (no fees) at Greenmangaming, a Steam key.
Just 8 stores stock it, 8 offers in all, so there is little here to push the price either way.
Steam Key
Steam Gift
Is it worth buying the Steam Key for Protocol now or waiting?
That €8.79 (no fees) key is at its usual price: no bargain, no spike.
- Those €8.79 (no fees) are 6% above what it usually costs, measured on the store price.
- Only 5 stores sell the Steam Key, and with that little competition the price barely moves.
- Not counting today, 1,144 days out of the 1,937 days on record were this cheap or cheaper; the lowest it has ever cost is €2.25.
Worked out from 2,498 daily records of the Steam Key for Protocol across 8 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 Protocol format should you buy?
By format: Steam Key from €8.79 (no fees) and Steam Gift from €7.82 (€8.81 with fees).
Can you activate Protocol in US?
All 8 offers are Global, so the code redeems on any account no matter where it was created.
Most common FAQs when buying Protocol 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.
Protocol
Is it worth it?
- 30/100Critics' average score
- 20%Critics recommend it5 critic reviews
- 73%Steam reviewsMostly Positive · 304 reviews
Is it alive?
- Watching now on Twitch
- Live channels
What the press says
Protocol is frustrating, annoying, and anger-inducing – I loved it! Despite the brutal and unforgiving insane A.I., who constantly kills you if you so much... Read more
Protocol is an unfocused, directionless mess of a game that tries to give too much without grasping the basics. The gameplay is frustrating, the dialogue... Read more
An absolute cluster of poorly written dialogue, terrible technical misses and infuriating puzzle mechanics, Protocol is a dreadful experience that will test your patience along... Read more
Protocol is a tortuous experience that combines clumsy, awful gameplay with an abysmal script. I would much rather fail the protocol, and be nuked, then... Read more
About the game
* languages with full audio
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Requirements
- Requires a 64-bit processor and operating system
- OS *: Win 7 or higher 64-bit
- i3-i5 4gen (or similar AMD)
- 6 GB RAM
- NVIDIA GeForce 650 (min 2 Gb)
- Version 9.0
- 8 GB available space
- Requires a 64-bit processor and operating system
- Win 10 64-bit
- Intel Core i5 4 Gen or higher
- 8 GB RAM
- NVIDIA GeForce 1060
- Version 11
- 8 GB available space
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