
DEFRAG is a game about cleansing corrupted sectors and refining them through optimization to build a stronger system. Collect resources, adjust configurations, and complete your build as you progress.
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): 1/day in the week to Sep 4 → 1.43/day in the week after.
Reviews, worldwide (the counter carries no country): 1/day in the week to Jul 22 → 1.25/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
[ CLEAN THE SECTOR ]
* Eliminate viruses and cleanse the sector.
* Maximize weapon performance through modules.
[ UPGRADE NODES ]
* Collect resources to strengthen your nodes.
* Combine nodes to create new combat styles.
[ CHALLENGE & REWARD ]
* Earn special rewards through challenges.
* Take on higher difficulties with new strategies.
Genres
Engagement
Reviews
Themes across 97 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
(ignore my time played - I reached 100% around 5 hours but left the game running by accident) Interesting incremental bullet hell game, although the difficulty is definitely on the casual end of things as you can become essentially unstoppable through the meta progression so you don't need lightning reflexes to get through DEFRAG (but they will help you beat multiple stages in a row before buying more upgrades). I played using mouse and keyboard, but the control experience was quite frustrating because the mouse wheel always zooms the main node tree in and out, even if you are also scrolling through the list of [spoiler] modules[/spoiler]. Also, even if you're using the arrows keys or WASD to move your little cube during the bullet hell levels, at the beginning of play it will always move towards your mouse cursor until you hit a key. It's little things like this that suggest to me that the developer could have used a bit more testing or watching people play the game in "real conditions". There's a flirtation with buildcrafting later in the game which is really cool on paper, but the interface to switch out "gear" is awful: there's even multiple loadouts available but items aren't unequipped from 1 when you switch to 2 (and so on), so if you want any of the same items equipped in two loadouts you'd need many multiples??). Just feels half-baked. The progression is pretty well-balanced - I don't think I ever had to attempt a stage more than two or three times and many of them I beat on the first attempt. One positive thing is that just when you feel like the unlock tree is getting a bit grindy, you'll beat a stage and a new meta mechanic will unlock. This happens a few times during the game and is very welcome - if I could tweak one thing it would probably be to unlock these things one stage earlier just to keep the progression from feeling too repetitive. Nice music, sound effects and there are some neat retro visual effects that anyone who played PC games in the 80s or 90s will appreciate, especially as you get towards the endgame. I'll add here that the game is currently rated PLAYABLE on Steam Deck and this is correct - you should play this game on a PC if possible. The text resolution makes it pretty unreadable on the Deck screen, and overall controller support feels good in the bullet hell levels but very bad in the meta layer. I want to stress that if you are looking for a casual bullet hell experience with the twist of an incremental meta layer and great visuals and sound, then you could do a lot worse than DEFRAG. I recommend it and enjoyed it a lot: I just think that with a few QoL tweaks this would be a game I'd be gifting to friends rather than just leaving a positive review.
Media

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Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
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Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English, Japanese, Korean, Simplified Chinese, Russian, Portuguese - Brazil
Hours played at review time, across 97 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
10 / 10 no notes
fr
Fun incremental game, has some moments of slow game progress at the end. took me 8.9 hours to finish it. so i would recommend it if you like to play incremental games that arent finished in 2 hours.
솔직히 비추를 누를 정도는 아니지만 이 게임을 대신할 뱀서류 게임은 널리고 널린 것이 진실이다. 대충 어느정도 잘 만들었다고 해서 상대적으로 봐 주지 않을 수는 없는 것이 현실이 아닌가. 이쪽 장르의 게임들에 비해 상당히 퀄리티가 떨어지고 자유도가 봉인 돼 있는 것 같다. 자신만의 빌드를 창조 할 수 없으며 적들을 물리칠 때의 도파민이 부족하다. 하지만 흑색 배경 덕분에 눈의 피로는 덜한 것이 장점이라면 장점이다. 심심풀이로 잠깐씩 하는 것은 괜찮을듯 싶다.
Oh WOW this is fun! This game is so much deeper and involved than what the store page video would make you think. It's a bullet hell with the simplest graphics, but all the fun and craziness expected of a proper bullet hell game. The incremental tag is accurate and it's fun finally getting powerful enough to destroy the enemies... which after four hours of me going psycho have their personalities for being nothing more than homing douche canoe shapes bent on my destruction... ahem... it's a great game and worth so much more than what the developer is selling it for. Many thanks for the experience dudes!
Good value. Zero replayability, but I still fee like it was money well spent. Note that this game is a grinder at certain stages - but not too much, I hate grinders and I still played through it.
simple et original sur certains aspect, je recommande! Ce prix vaut ~4h de gameplay, ça vaut le coup
Very cool little game for the price. Took me 8 hours in all to fully complete, and I loved the end of game screens lol. I would pay the same amount again for some DLC, as you could potentially expand this one infinitely. Played most of it on the Steam Deck, and it's perfect on there. Highly recommended!
nice
Players by region
Where this game's players are, estimated from review languages.
Players also reviewed
The games this title's players most often review too — audience affinity.
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