
Get injected into the microscopic world of BioGun. Face viral threats and winding corridors on your mission to save man’s best friend from the inside. Will you save dog-kind from extinction?
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 Aug 3 → 0.86/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 2,402 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
Join Bek on his journey to save the entire canine species from an extinction caused by the sinister Dooper Virus. Inject yourself into a zany hand-drawn world of germs, cells, and winding passages full of vibrant characters and ferocious bosses with a story that takes place inside our beloved pets.
Give your dog a fighting chance by aiding its immune system to fight off the Dooper Virus. Befriend cells on your journey, absorb new powers from vanquished foes and explore vital organs to prevent them from failing! Will you be the vaccine to save dog-kind from extinction?
Fast paced side-scrolling 360 shooter action with all the modern gameplay mechanics you’ve come to expect and more.
Blast your enemies with an impressive array of weapons. Augment your DNA and modify your playstyle using Nano-Chips. Take on bosses inspired by real diseases in uniquely designed encounters.
Complete side missions to aid Cells in need. Explore each organ to earn rewards and learn about the life forms that live there.
Traverse a hand-drawn microscopic world full of traditionally animated cells, germs, viruses and bacteria. Meet the wondrous creatures, both friendly and hostile, that inhabit it. Discover the many secrets cleverly hidden in your dog's body.
You will be accompanied on your mission by a blood-pumping score by Juhani Junkala
Save humanity's best friend. Prove that you’re the vaccine that can put an end to the pet-demic. What are you waiting for? Put on your hazard suit and blast some viral scum! The fate of dog-kind is in your hands!
Genres
Add-ons
Each DLC is estimated with the same model as a game, then summed — a modeled figure, not reported DLC sales.
Engagement
Reviews
Themes across 60 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
Excelente jogo, Historia interessante e te prende ao jogo, colecionáveis legais e divertidos, divertidos, a exploração e muito fascinante, o visual dos mapas e das áreas são muito boas, super recomendo.
好玩,很有创意,除了偶尔有点小bug之外是很优秀的类银
The games somewhat decent but does have a lot of flaws. Some of the good things are the game is of decent length. The boss fights are tough but fair and done well. You get abilities like double jump and deflect pretty early on. Also choosing to upgrade health or energy is an interesting choice. Theres also a good deal of upgrades to get and things to unlock, including multiple optional mini-bosses. The visuals are decent and theres enough enemy variety to keep things interesting. Then theres the negatives. People complain about bugs but I only had a boss fight bug on me and I had to restart it, but didn't notice much else. The game gives you all these objectives but basically ZERO direction, including the main quest. I spent over an hour with 2 doopers left just looking for where to go, and apparently I was supposed to go back to some random NPC i had talked to multiple times to trigger a boss fight that then let me go through this keycard door in a different area to trigger the next boss fight.......how TF should I know that as his icon on the map is an NPC and not a boss. This is annoying and horribly done. Also some areas theres a good deal of fast travels, and other areas theres 1 or 0, which is horribly done especially for all the backtracking. They give you this ability to teleport around to other rest areas before the FINAL boss of the game so its worthless. The shop is pretty lame, I bought a few things to upgrade myself but then theres basically nothing to buy. You can buy chips but since you only can ever use 1 I just used one of the starter ones because none of the others seemed better. The same goes for weapon mods, they all do significantly less damage than regular gun and are too gimmicky so seemed pointless. This means basically the only upgrade in the game was the health/energy and I used the basic gun and chip the whole game without any impetus to change which is lame and not how a MV should be. The controls can be annoying at times, trying to aim, move, jump, and shoot at all once on boss fights. The twin stick nature requires use of both sticks at all times but the MV movement requires fast responsive platforming as well both of which go at odds with one another. Theres two default control schemes but neither are perfect, the game almost needs to be controlled with a KBM but for movement its not ideal. The control scheme I used said it would keep the aimer in the direction I had it last but it only seemed to work like 20% of the time. Overall the game isn't bad and a different take on the MV genre with it being a twin stick shooter. Theres a lot to collect and upgrade, but the upgrades and items could be done better. Annoying controls, a few bugs, poor fast travel and lack of direction hamper it from a higher score. Still could be worth checking out. 7.5/10.
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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*, French, German, Russian, Spanish - Latin America*languages with full audio support
Hours played at review time, across 60 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
I like this game. But I have mixed feelings. The art, the progression, the level design... it's all good. The music is engaging and the gameplay too. It's just that, for some reason, I feel very lost in what to do or where to go when comparing this to other metroidvanias. I wouldn't stop recommending this game because of this feeling... maybe it's just that I'm not a patient gamer anymore. Also the fact that it's not working well on Deck (it can be played but there is some bug related to the game engine that makes it difficult to have good FPS on it). It looks amazing on a Windows PC though. I will continue until I see the end credits so, I still think it's worth your money and time if you're thinking about getting this game.
BioGun is a very large scope Metroidvania that looks like Hollow Knight but biology related at every turn. It has its own unique spin on the Metroidvania, adding fun mechanics and twists. There's a lot of experimentation with combat mechanics, fun cosmetics to unlock, and a variety of weapons to play around with. You get the fun platforming and combat feel of Hollow Knight, but without the intense and punishing difficulty. Death isn't the end and you don't really lose anything. There is a very...very large map. I'm only 7 hours in and I keep discovering more areas. I think I might have found the general shape of the whole map by now, and it's a lot bigger than I was expecting for something made by two people. Very impressive, and well done. The story seems intriguing, and I'm loving this mix between biology and anime in a 2D Metroidvania. The characters all seem to have different personalities, and pretty much everything ties into the main theme of the game. Nothing really seems out of place and the immersion is great. There are lots of comical moments and sometimes the characters even react to what you do outside of dialogue. I will say some of the story moments made me a little uncomfortable ([spoiler] like when boogers are kissing each other [/spoiler]), but for the most part it has been fine so far (and I'm really sensitive to that kind of stuff). There are definitely some bugs in the game. The developers have tried squashing many of them but were starting to run into limitations of the game engine they are working in. There hasn't been anything terrible yet, and bugs aren't very common. Considering the size of this game and the incredibly small development team, I would say that's a welcome surprise. Overall, BioGun is a really enjoyable experience for a variety of gaming skill levels. It's a charming and thoughtful game that really ties the story and gameplay together well. I'm excited to see how the game continues from here. Give it a go and help this dog feel better while saving dogkind!
Edit: Ok I was a little fast to judge. After that particular section, I haven't encountered anything buggy like that. And not gonna lie, I'm really enjoying myself. There is a heavy Metroid vibes here that I absolutely love. And some inspiration by Hallow knight. The story and setting is kind of new and pretty cute. (well the fact that you're inside the body of a cute dog, with cute cells is very cute.) BUT if you have Trypophobia, stay the hell away from this one. It's hell for you. 😂😂 (my first review was pretty negative. Hope I don't change my mind again.)
Great art, cute presentation that has a fun Saturday Morning style but isn't generic, excellent run n' gun gameplay. It's a game I can tell could easily become a solid all time favorite. I put off playing this game for a LONG time but finally decided to jump in and it lives up to my own personal hype. With a caveat that I am well aware it has a janky engine, so there are performance issues. I'm playing a very modest desktop so far and plan to try out my Legion GO eventually. So far (and I'm very early) on Desktop the game plays very well 90% of the time with very occasional hitches. But the game is good enough that I can (so far) easily look past slight technical issues.
100% RECOMMEND WITH ALL MY HEART. This is one of the BEST Metroidvanias I've ever played. It also just so happens to be one of the most unique and original mvs on the market. The story, world building, unlockable moves, artwork, platforming, and combat are all top notch and combine to form one of the most fun metroidvanias you'll ever play. I honestly cannot believe this isn't listed up there with the likes of Hollow Knight by the majority of fans but it belongs right under it imo. The ONLY issues I have with the game is the difficulty could stand to go up a notch on some of the bosses and there I encountered a handful of bugs that half of which caused me to have to turn the game off. The other half of bugs were fixable by hitting the start button to kind of reset the games state I guess while still playing. Then I just shot my blaster and moved around and was fine.
The campiness, the so-so 2d shooting, and the occasional bugs all make me feel like playing something else.
After about two hours, I realized you need three hands to play this game. One to steer, one to aim, and the third to shoot/jump/heal. Online threads told me it would be easier if the left stick controlled both actions, but I couldn't figure out how to do that in Steam Overlay. I gave up and enabled the in-game cheats (auto aim, god mode, etc.) and finished the game like this. The rest of the game was absolutely mediocre, and nothing redeemed the game, in fact, it ruined it, like the elements at the end (escaping Diromitus), so I finished the game frustrated.
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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