Buy MainFrames Steam Key
MainFrames Steam Key: compare prices from 5 offers (November 2026)
A MainFrames 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 €1.68 (€1.99 with fees, -49%) at Key4Games, 49% below the €3.89 (no fees) Steam price · 5 verified stores, 5 offers in stock · Updated 22min ago.
Official stores are authorized distributors, and while their prices may be higher than Key stores, their reliability is 100%.
“Choose it if you don’t mind the price difference”Key stores are resellers and marketplaces, which is why they are usually cheaper than official stores. We only show the best ones, so you can rest assured. Plus, we offer our guarantee against any issues.
“Choose it if you’re looking for a great discount”Prices change depending on the selected payment method.
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Final prices with fees
About MainFrames

Boot up for a byte-sized adventure in MainFrames, a clever and charming platformer that plays out entirely within the windows and desktop of a PC monitor.
Join Floppy, an adventurous program seeking to find their place in the digital world, while cheeky daemons maintain the system’s balance, always managing to stay out of your sight. Navigate a maze of diverse PC frames, meet quirky and colorful characters, and uncover secrets that bring Floppy closer to piecing together their function. Each interaction injects humor and warmth into their journey, making every moment a byte of delight.

In MainFrames, you'll guide Floppy by rearranging program windows to create new pathways, jumping between frames to navigate the digital world. Every area you explore is rich with distinct visual styles, innovative mechanics, and hidden secrets. Complemented by a micro-chill soundtrack, the game’s charming puzzles and platforming challenges provide a rewarding experience that's hard to log off from.

How much does MainFrames for PC cost right now?
MainFrames for PC starts at €1.68 (€1.99 with fees) at Key4Games, a Steam key, which is 49% under the €3.89 (no fees) it costs on the official store.
This is the lowest price it has ever been recorded at.
Only 5 offers across 5 stores carry it, and thin supply means the price barely moves.
Is it worth buying the Steam Key for MainFrames now or waiting?
That €1.68 (€1.99 with fees) key is at one of its best prices.
- Those €1.68 (€1.99 with fees) are 23% below 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, only 37 days out of the 405 days on record were this cheap or cheaper; the lowest it has ever cost is €1.09.
Worked out from 764 daily records of the Steam Key for MainFrames across 6 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.
Are these stores safe to buy MainFrames from?
One caveat worth €0.06 with fees: the €1.68 (€1.99 with fees) at Key4Games is the cheapest, but that store carries only 37 Trustpilot reviews, so there is barely any track record behind it. Driffle sells the same Steam key for €1.59 (€2.05 with fees) — €0.06 with fees more — backed by 9.2k reviews and a 4.4 out of 5, which is a small premium for a seller thousands of buyers have already tested.
Can you activate MainFrames in US?
All 5 offers are Global, so the code redeems on any account no matter where it was created.
Is MainFrames worth it?
20 outlets reviewed it and it averages 75 out of 100, with 65% recommending it.
Why is there such an expensive MainFrames offer?
One listing is worth ignoring: the Steam key that Fanatical has at €12.99 (no fees) is more than 6 times the cheapest offer and is not what this game costs. The number to work from is €1.68 (€1.99 with fees) at Key4Games.
Most common FAQs when buying MainFrames 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.
MainFrames
Is it worth it?
- 76/100Critics' average scoreOpenCritic · Strong
- 65%Critics recommend it20 critic reviews
- 88%Steam reviewsVery Positive · 171 reviews
- 5.0/5GoCDKeys users1 ratings →
What the press says
MainFrames is a quirky, tightly packed precision platformer with a ton of personality and unique ideas. It's challenging and rewarding to create what could be... Read more
A short and sweet platformer with tons of charm, MainFrames is excellent time all around. Read more
Mainframes is an extremely creative, masterpiece in its art-style and soundtrack and a fairly difficult platformer about a floppy disc on a mission of finding... Read more
MainFrames is, simply, a lovely retro-themed puzzle platformer with humour, challenge, and some brain-straining mechanics to master. While not easy, the satisfying controls and charming... Read more
MainFrames is a short and sweet platformer that manages to pack plenty of challenge and fun into every stage, all while remaining visually striking, engaging,... Read more
Mainframes is beyond doubt an impressive game that looks terrific, sounds fantastic, and handles like a dream. Read more
If I was to call MainFrames a proof of concept, I would be grossly overlooking its stellar presentation of byte-sized platforming as a little floppy... Read more
MainFrames is one of those games that knows exactly what it wants to be—and nails it. It’s glitchy in the best way, fast without being... Read more
Outside of its standout aesthetics, MainFrames is a novel pixelated take on precision platforming and a love letter to both platforming and retro PC Read more
Charming 2D platformer set within the windows and desktop of a PC Read more
Precision platformers don’t necessarily need stories, but once you have experienced them with deeply engaging plots, it’s hard to fully enjoy them without. What MainFrames... Read more
All told, Mainframes is a solid recommendation if you’re after a new precision/puzzle platformer that tries something relatively fresh with its desktop-bending premise. We would... Read more
Mainframes leaves me with an overall impression of muddledness, albeit executed with a sincere passion. It throws in ideas about platforming, collecting, and environmental manipulation.... Read more
So it’s probably pretty weird that I am going to recommend this game with one big fat caveat. If you’re a fan of the genre,... Read more
MainFrames is a delight to look at, but less enjoyable to actually play. The charming and cute aesthetics can't save MainFrames from its simplistic gameplay... Read more
After finishing MainFrames, I felt satisfied. The game doesn't reinvent the wheel, but it's entertaining, and at the end of the day, that's what matters.... Read more
A cute and short platformer about a nostalgic time, the game efficiently entertains and pays tribute to simpler times with a very charming visual style,... Read more
About the game
Requirements
- Windows 10
- Intel Core 2 Duo E6750 or AMD Athlon 64 X2 6400+
- 4 GB RAM
- NVIDIA GeForce GT 320, 1 GB or AMD Radeon HD 6570, 1 GB
- 2 GB available space
- Additional Notes: 1080p @ 60 FPS
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