Compare MainFrames prices across trusted key stores and find the best deal. Developed by Assoupi. Published by The Arcade Crew. Released on 3/6/2025. Available on PC. Genres: Adventure, Indie. Metacritic score: 74/100.

Rare one-dev ingenuity: a precision puzzle-platformer where the entire world is a 90s desktop, and the most clever gimmick in recent indie memory is hiding inside it.

My first instinct, booting up MainFrames from solo developer Assoupi, was that this was going to be a cute novelty - a Windows 98 skin stretched over a forgettable hop-and-bop. I was wrong, and I was very glad to be wrong. What Assoupi has quietly built here is one of the most conceptually tight precision platformers I have encountered in a long time, and the fact that it comes from a single independent developer makes the craft feel almost unreasonable. You play as Floppy, a floppy-disk-shaped program who wakes up inside a computer network with no assigned function and no idea why. A Linux-inspired penguin sets you on your way: travel through eight networked machines, rescue stranded daemons, bring them back to the hub break room, and maybe piece together what this whole MainFrame was supposed to be. The story lands mostly through background environmental detail - instant-message logs, pixel portraits of the development crew, the quiet remnants of a programming team's abandoned project scattered across level backgrounds. There are no cutscenes, no voiced dialogue. The lore drip-feeds itself to people paying attention, and I appreciated that the game trusts you to look. The core movement vocabulary is lean: jump, double-jump via a mid-air spin, wall-cling for a brief moment, and ledge-grab to save a slightly undershooting run. What separates MainFrames from a standard pixel platformer is that the platforms themselves are windows, and those windows are interactive. Early on you get a mouse cursor to drag frames around, repositioning platforms to clear gaps. Later, a corrupted garbage-data window becomes solid the moment you highlight it with the cursor, turning a blue-screen-of-death error into a lifeline. Gear icons rotate entire sections. Arrow bumpers pinball Floppy across stages. Each of the seven main zones introduces at least one new system, and the best moments come when two or three of those systems overlap and you have to choreograph both your movement and your cursor simultaneously. Daemon rescue missions layer on another wrinkle: each companion behaves differently, one walking on the ceiling while you walk on the floor, one orbiting Floppy continuously, and they all die in a single hit, turning what felt like a platforming room into something closer to a tense escort sequence. The honest caveat is difficulty balance. MainFrames markets itself as cozy, and for stretches it earns that label - respawn times are nearly instant, a forgiving ledge-grab system prevents a lot of cheap deaths, and an accessibility suite (invincibility, infinite jump, infinite spin) exists for players who want the sightseeing without the suffering. But there are difficulty spikes, particularly one mid-game tunnel gauntlet that multiple reviewers flagged independently, that feel out of key with the surrounding tone. Gravity-inverting sections can make Floppy feel sluggish and hard to read. A handful of scrolling-window rooms - where progress depends on Floppy walking repeatedly into a wall or rapidly rocking the joystick - are the one mechanical idea that grates rather than delights. None of this derails the experience, but it does mean the cozy label is aspirational in places rather than accurate. The art and sound are where Assoupi's handcraft shines brightest. Every zone carries a distinct visual register, all of them rooted in that late-90s desktop aesthetic: watercolor backgrounds, beautifully constructed pixel art that somehow looks intentionally dated without feeling cheap, and a chiptune-adjacent soundtrack that sits at exactly the right volume to be ambient without disappearing. The whole CRT-monitor frame around the game window is a small touch that quietly kept me grounded in the fiction the entire time. The runtime lands somewhere between three and six hours depending on how much you explore and how the difficulty spikes treat you personally. For a game at this price, that is a well-proportioned package, and it knows when to end. Kai, Scout Team

MainFrames

MainFrames

Mar 6, 2025AssoupiThe Arcade Crew
GamerScout Says

Rare one-dev ingenuity: a precision puzzle-platformer where the entire world is a 90s desktop, and the most clever gimmick in recent indie memory is hiding inside it.

PC
Steam Deck VerifiedProtonDB Platinum
Best Price Available
€1.69
at Kinguin
Lowest tracked: €1.60
Track this price

GamerScout Verdict

Worth every minute for puzzle-platformer fans who can tolerate occasional difficulty spikes in an otherwise handcrafted gem.

Compare Prices(5 stores)

KinguinBest price
StandardGlobalSteam KeyKey
€1.69
Priced in EUR by the store
Buy
StandardGlobalSteam KeyKey
€2.05-84%
Priced in EUR by the store
Buy
StandardEurope (EU)Steam KeyKey
€2.10
Priced in EUR by the store
Buy
StandardGlobalSteam KeyKey
€2.99
Priced in EUR by the store
Buy
StandardEurope (EU)Steam KeyKey
€4.54-65%
Priced in EUR by the store
Buy
StandardGlobalSteam KeyKey
€12.99
Priced in EUR by the store
Buy

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Price History

Lowest tracked
€1.6013 Jul 2026
Current best
€1.69
Keyshops
€1.58€1.64€1.69€1.756 Jun30 Jun23 Jul16 Aug8 Sept
6 Jun — 8 Sept
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Screenshots & Media

About MainFrames

My first instinct, booting up MainFrames from solo developer Assoupi, was that this was going to be a cute novelty - a Windows 98 skin stretched over a forgettable hop-and-bop. I was wrong, and I was very glad to be wrong. What Assoupi has quietly built here is one of the most conceptually tight precision platformers I have encountered in a long time, and the fact that it comes from a single independent developer makes the craft feel almost unreasonable. You play as Floppy, a floppy-disk-shaped program who wakes up inside a computer network with no assigned function and no idea why. A Linux-inspired penguin sets you on your way: travel through eight networked machines, rescue stranded daemons, bring them back to the hub break room, and maybe piece together what this whole MainFrame was supposed to be. The story lands mostly through background environmental detail - instant-message logs, pixel portraits of the development crew, the quiet remnants of a programming team's abandoned project scattered across level backgrounds. There are no cutscenes, no voiced dialogue. The lore drip-feeds itself to people paying attention, and I appreciated that the game trusts you to look. The core movement vocabulary is lean: jump, double-jump via a mid-air spin, wall-cling for a brief moment, and ledge-grab to save a slightly undershooting run. What separates MainFrames from a standard pixel platformer is that the platforms themselves are windows, and those windows are interactive. Early on you get a mouse cursor to drag frames around, repositioning platforms to clear gaps. Later, a corrupted garbage-data window becomes solid the moment you highlight it with the cursor, turning a blue-screen-of-death error into a lifeline. Gear icons rotate entire sections. Arrow bumpers pinball Floppy across stages. Each of the seven main zones introduces at least one new system, and the best moments come when two or three of those systems overlap and you have to choreograph both your movement and your cursor simultaneously. Daemon rescue missions layer on another wrinkle: each companion behaves differently, one walking on the ceiling while you walk on the floor, one orbiting Floppy continuously, and they all die in a single hit, turning what felt like a platforming room into something closer to a tense escort sequence. The honest caveat is difficulty balance. MainFrames markets itself as cozy, and for stretches it earns that label - respawn times are nearly instant, a forgiving ledge-grab system prevents a lot of cheap deaths, and an accessibility suite (invincibility, infinite jump, infinite spin) exists for players who want the sightseeing without the suffering. But there are difficulty spikes, particularly one mid-game tunnel gauntlet that multiple reviewers flagged independently, that feel out of key with the surrounding tone. Gravity-inverting sections can make Floppy feel sluggish and hard to read. A handful of scrolling-window rooms - where progress depends on Floppy walking repeatedly into a wall or rapidly rocking the joystick - are the one mechanical idea that grates rather than delights. None of this derails the experience, but it does mean the cozy label is aspirational in places rather than accurate. The art and sound are where Assoupi's handcraft shines brightest. Every zone carries a distinct visual register, all of them rooted in that late-90s desktop aesthetic: watercolor backgrounds, beautifully constructed pixel art that somehow looks intentionally dated without feeling cheap, and a chiptune-adjacent soundtrack that sits at exactly the right volume to be ambient without disappearing. The whole CRT-monitor frame around the game window is a small touch that quietly kept me grounded in the fiction the entire time. The runtime lands somewhere between three and six hours depending on how much you explore and how the difficulty spikes treat you personally. For a game at this price, that is a well-proportioned package, and it knows when to end.

Kai
Kai · Scout Team

Indie & narrative

Tags

singleplayerachievementscontroller-supportcloud-savestier:sub-5Precision PlatformerPuzzle-Platformer HybridRetro Desktop AestheticDaemon RescueWindow ManipulationChiptune SoundtrackAccessibility OptionsHub WorldEnvironmental Storytelling

System Requirements

Minimum

OS
Windows 10
Memory
4 GB RAM
Storage
2 GB available space
Graphics
NVIDIA GeForce GT 320, 1 GB or AMD Radeon HD 6570, 1 GB
Processor
Intel Core 2 Duo E6750 or AMD Athlon 64 X2 6400+

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Reviews & Ratings

Metacritic
74

Game Info

Developer
Assoupi
Publisher
The Arcade Crew
Release Date
Mar 6, 2025

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Frequently asked questions about MainFrames

How much does MainFrames cost?

As of 8 September 2026, the cheapest in-stock offer for MainFrames is €1.69 at Kinguin, out of 6 live offers we track across verified key stores. Prices change daily — the table on this page is refreshed continuously.

Where can I buy MainFrames cheapest?

The lowest in-stock price we track for MainFrames is €1.69 at Kinguin (8 September 2026). We compare 6 live offers from verified key stores — the full table with every store and its trust score is on this page.

What platforms is MainFrames available on?

MainFrames is available on PC.

When was MainFrames released?

MainFrames was released on 6 March 2025.

Who developed MainFrames?

MainFrames was developed by Assoupi and published by The Arcade Crew.

Is MainFrames worth buying?

MainFrames holds a Metacritic score of 74/100, making it one of the standout Adventure titles. See the full reviews, ratings and how-long-to-beat times on this page to decide.