
A retro incremental game where you accept jobs involving disks, decide how to process them, and push an aging PC to the absolute limit. Upgrade your machine, reboot to gain permanent BIOS improvements, and tackle disks that get increasingly hot, risky, and valuable.
Modeled estimate, not a reported figure. How we estimate →
Discounts
Every price cut of more than 20% we have observed, in each market that quoted one, with this game's chart position on either side of it. These are episodes, not a model: a sale is one event, and one event cannot tell you what the next one will do.
Reviews, worldwide (the counter carries no country): 0/day in the week to Sep 13 → 0.4/day in the week after.
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 26 chart moves that followed a price cut of more than 20% went a median of 7 places towards #1, and the 2,400 moves with no price cut behind them went 2 away. One store, one chart, one country — it is the only place we have enough observations to say even that.
Prices outside the United States have been collected since 6 August 2026 and chart positions since 19 July 2026, so a cut older than that has no market to compare and a market that joined later has no history yet. Nothing here is converted between currencies.
About
Defrag Incremental is a retro incremental game about doing one very specific job on an increasingly overworked 90s PC: defragmenting disks for money.
At first, the job is simple. Pick a disk, choose an algorithm and get it done before the workday ends.
Then the disks get bigger.
Some arrive damaged. Some run hot. Some are worth a lot more than they have any right to be. Your computer gets faster too, but faster hardware also gives you more ways to push things too far.
You don't have all day.
Disks come with different sizes, values, conditions and properties, and taking the most expensive one is not always the smart choice. A job that looks profitable can become a problem if it runs past the end of the shift or your hardware isn't ready for it.
Daily conditions and contracts can also change what is worth doing from one workday to the next.

Algorithms and modes trade speed, reward, heat, wear and safety against each other.
There isn't one setup that is best for every disk. Sometimes you want to finish as quickly as possible. Sometimes keeping a damaged disk alive matters more. Sometimes you just need to get something finished before the clock runs out.
Once a disk is running, you can keep an eye on its health and temperature and intervene when things start going wrong.
Finished jobs give you Defrag Points to spend on the current run. Improve read and write performance, cooling, recovery and the other parts of the machine that are holding you back.
As those upgrades stack up, disks that were painfully slow at the start become manageable and new tiers begin to make sense.
The System Stats panel keeps track of the combined effects of your upgrades, so you can see what the machine is actually capable of.
Rebooting is the prestige layer.
Your temporary run upgrades are reset, but the Reboot Charge you've built up becomes BIOS Chips. These are spent on 53 permanent BIOS upgrades that stay with you between runs.
They unlock new shops, automation, longer workdays, advanced controls and other tools that gradually change how each new run plays.
So every run starts again, but it doesn't start from the same place.
Eventually the computer can take over some of the routine work.
Automation follows a simple set of rules. It can keep things moving on its own, but an attentive player can make better choices about disks, algorithms and risk. You can leave it alone, step in when it matters, or gradually automate more of the job as the system grows.

The money you make from disks is separate from the points used to upgrade the computer.
What happens during the workday follows you home: finished jobs, lost rewards and interrupted shifts affect a separate life-management layer between workdays.
Housing, transport, food and other expenses gradually turn the money you earn at the computer into another part of the progression.
The computer keeps track of what you've discovered and how far you've made it through the game.
New tiers, archetypes, tags and special disks fill out the database alongside personal goals, Byte Bazaar discoveries and your progress outside work.
If seeing 100% next to a database makes something in your brain happy, there is plenty here to fill in.

The whole game lives inside a fictional desktop inspired by the PCs and operating systems of the 1990s: BIOS screens, little utilities, reports, ugly system messages, questionable noises and far too many windows.
The machine starts simple. It doesn't stay that way.
8 disk tiers
7 disk archetypes
13 disk tags
8 special disks
24 algorithm/mode combinations
3 upgrade shops
53 permanent BIOS upgrades
Expert controls for fine-tuning how the system behaves
Automation for handling routine work
Daily conditions and contracts
A separate financial and life-management layer
12 personal goals
6 Byte Bazaar discoveries
Housing, transport and food progression
A Diskdex with full completion tracking
And yes, it goes to 100%.
Engagement
Reviews
Themes across 64 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
As an avid PC gamer back in the early 90s, this game scratched that "good ol' early Windows" feel. This game has a good bit of soul, and though I've already completed most (if not all) of what the game currently has to offer, I'm pretty content with the experience. I know most games aren't infinitely playable (including idle/incremental games) and this one was a pretty decent experience for the hours I've played it. It's cheeky, simple, and the nostalgia from the old CHKDSK colors is pretty soothing. Some parts of the game don't appear to be implemented yet, but as of posting this review, the game's only been out for a week. I personally preferred the game without the automation, but maybe I'm just a giganerd.
Defrag Incremental is (At the time of this review) rough around the edges. There are quite a few bugs, some upgrades don't always seem to behave as expected, and there's definitely more polish needed before I'd call it finished. Despite that, I actually really, really like the core idea here. Watching an old-school defragger gradually become an incremental game is weirdly satisfying, and I think there's the foundation of a really good game underneath the current problems. I've certainly paid more for games that interested me considerably less, and at £3.59 full price I'm quite happy to give this one some time to develop. One area I'd particularly like to see improved is the audio, which seems to be looping, no matter what. So at the moment the sounds don't always feel connected to what the defragger is actually doing. It would be great if an idle disk sounded like an old computer quietly sitting there, while reads/writes and block movements produced sounds that actually corresponded with the activity on screen. With the right audio design, watching the blocks move around could become ridiculously satisfying. I'd also really appreciate a pause option, particularly during the early game when you have much less control over what's happening. So yes, there are bugs. Quite a lot of them at the moment. But the developer also appears to be actively fixing them, and most importantly I don't think the underlying concept is the problem. This feels like something that needs more time and polish rather than something fundamentally broken as a game idea. I really hope development continues beyond simply fixing the launch bugs, because there's a lot that could be built on here. For a couple of quid, I've already had enough fun with it to recommend it, bu just go in expecting an inexpensive indie incremental that's still being worked on, rather than something perfectly polished. It might need a few more passes before it's fully optimised. Perhaps even a defrag. ;)
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Genres
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English**languages with full audio support
Hours played at review time, across 64 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
Too many bug
As much as I love the idea and want to support the dev who is actively fixing the (many) bugs - nothing will change the fact, that this is just not a fun game. It is a fun idea with sadly uninteresting gameplay and a progression system that does not feel rewarding.
NOTE: I do see the developer is actively working on issues in the discussion page. Going to leave this review positive for the moment. Will update depending on what happens with the game. I genuinely wish I could rate this "maybe" What I like: I grew up using DOS/Win 3.11. So this is nostalgic. Its kinda comforting to see an interface like this. The style of the interface really feels like I'm looking at an old defrag utility and just waiting for it to finish so my system could feel a little bit faster. What I don't like: This is an idle game, but the reset of the PC is the required step to actually make it a true idle game. For anyone that's played Clicker Heroes or a similar game this would be like waiting until the first prestige step to get an automated clicker instead of just a standard upgrade after a few minutes of playing. I can't believe I'm going to say this but this is a game that desperately needs a story, even a barebones one. Why are we after DP? Especially when at the end of the day we're getting money. Does money have any practical reason for being here? If its part of a future update for upgrades it would make sense. But as it is now, I don't see the purpose of having an income when upgrades are handled via DP or RC. It just makes no sense for the current gameplay loop. If we had a story that was even as simple as, "You're just a person in the late 80s/early 90s that has figured out a business model based around defragmenting disks" that would help. But I'd actually push even further on that. Why aren't we able to use money to bring in new customers? Why are differing drive types coming from the DP/RC loop? Some of the upgrades say "LOCKED" when you don't have the DP to purchase them. Specifically the algorithms. If the only thing keeping me from a purchase is DP, the dialogue should not say "LOCKED" it gives the impression that the upgrade needs a prerequisite other than the primary currency. What I don't understand: What do the DP Upgrades actually do? I see things like x% faster in certain operations, more points awarded... but I don't actually see a meaningful way to translate that to what's on screen. If I'm upgrading even something as simple as updating some of these fields and showing what the upgrades are doing would be helpful. Best example, right now I'm on a drive with an E. Time of 7:48. Would be fantastic if the upgrades could show as: E. Time 6:50 (7:48) Where what's in the parenthesis would be the original time prior to upgrades. Why are some of the RC upgrades not unlockable with DP? If we could for instance, purchase automation with DP but then use RC to upgrade that automation it would make this a lot more approachable as an idle game. Also, making automation purchasable with RC could still work if you could eventually upgrade automation to start a cycle with it using RC to purchase. Final Thoughts: I don't know if this was vibe coded. I definitely see why people would feel that way, but you didn't mark it as such so I'll give you the benefit of the doubt. This game feels like it needed more time/testing. I feel like a pass to fix some of the issues I've brought up as well as other reviewers would help immensely. Its promising but could have been so much more.
A very slow burn type of game, to a fault early on (the upgrades are SUPER weak early on so it kind of feels like you're not making progress), but if you stick with it, it becomes oddly compelling.
Simple
Great old-school premise, really fun, working great here with only minor bugs (like sound returning after i turned it off) that I expect will be gone soon. More sound options would be fun! Recommend 100% if you've seen a defrag screen before and you're into idlers :)
This game is sweet for how little it costs
Das „Spiel“ ist leider extrem langweilig. Das Einzige was man tut ist es auszuwählen, welche Disk man defragmentieren will. Dann läuft es einfach durch, bis man die nächste Disk auswählt. Für Leute, die einen interaktiven Bildschirmschoner suchen kann das entspannend sein. Für mich ist es einfach nur tot langweilig.
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Active players
Estimated daily and monthly active players (DAU/MAU) modeled from peak concurrency.
Players by region
Where this game's players are, estimated from review languages.
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