- Price range
- $0.62–$7.42
- Last updated
- 24 November 2025, 13:43
- Offers
- 11
- Stores
- 4
Compare CD key prices for Mainframe Defenders in 4 game stores, and choose the best deal from 11 offers. Below you will find up-to-date prices for Mainframe Defenders on Steam and Gog.com platforms, which can be activated in Global and Europe regions.
Mainframe Defenders sale, discount, and price comparison in one place!
We track thousands of products from 4 stores to find the best prices for Mainframe Defenders and other games. For some store we even have discount coupon codes to help you buy Mainframe Defenders even cheaper!
Get Mainframe Defenders for free — is it possible?
Even though Mainframe Defenders 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 Mainframe Defenders is on sale and hits the price you want.
Can I activate Mainframe Defenders in my region?
Most distribution platforms (like Steam) have regional restrictions and different prices for each game: e.g., Mainframe Defenders will cost more for customers from United States than from Argentina, but customers from US cannot activate Argentina’s Mainframe Defenders key.
We show this regional restrictions information under “Region” in our filters and in the list of Mainframe Defenders offers. For instance, “Mainframe Defenders Global” means it can be activated in any country, “Mainframe Defenders Europe” – only in Europe, and “Mainframe Defenders Japan” — in Japan only.
However, some shops do not provide regional information, so the best way to make sure Mainframe Defenders 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 Mainframe Defenders offers from official stores and keyshops?
Official stores get their Mainframe Defenders 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 Mainframe Defenders key is not working.
