- Price range
- $3.97–$172.67
- Last updated
- 24 November 2025, 13:42
- Offers
- 4
- Stores
- 3
Compare CD key prices for Protocol in 3 game stores, and choose the best deal from 4 offers. Below you will find up-to-date prices for Protocol on Steam platforms, which can be activated in Global regions.
Protocol sale, discount, and price comparison in one place!
We track thousands of products from 3 stores to find the best prices for Protocol and other games. For some store we even have discount coupon codes to help you buy Protocol even cheaper!
Get Protocol for free — is it possible?
Even though Protocol free download is unlikely, you can take advantage of our price comparison engine and find best prices right now, or create a price alert and get notified once Protocol is on sale and hits the price you want.
Can I activate Protocol in my region?
Most distribution platforms (like Steam) have regional restrictions and different prices for each game: e.g., Protocol will cost more for customers from United States than from Argentina, but customers from US cannot activate Argentina’s Protocol key.
We show this regional restrictions information under “Region” in our filters and in the list of Protocol offers. For instance, “Protocol Global” means it can be activated in any country, “Protocol Europe” – only in Europe, and “Protocol Japan” — in Japan only.
However, some shops do not provide regional information, so the best way to make sure Protocol will be activated in your region is to visit shop’s product page: there’s always a special block next to the price that shows if it can be activated in your country or not.
What is the difference between Protocol offers from official stores and keyshops?
Official stores get their Protocol keys directly from game developers or publishers, while keyshops resell keys from unknown sources.
Keyshops are usually cheaper than official stores, but they are riskier. We recommend reading keyshops’ and sellers’ customer reviews first. Also, most keyshops have buyer’s protection programs to guarantee a refund in case Protocol key is not working.
