
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 2,400 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
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
This game is truly awesome! The gameplay is smooth, the controls are responsive, and the setting is wonderfully unique: you're literally inside a dog's body. The world is vibrant and colorful, the characters are cute and memorable, and the action is intense and genuinely fun. There are plenty of bosses, both optional and mandatory. Backtracking, item collecting, health upgrades - everything you'd expect from a proper metroidvania is here. But then there's the game engine: Construct 3. Since it basically runs in a web browser, it doesn't always treat this game kindly... During my playthrough, I encountered several bugs. Most of them were harmless and didn't affect the game in any meaningful way. Things like flying across three screens only to get stuck in a wall, falling off a platform I wasn't supposed to fall from, the save file showing the wrong amount of currency, or even occasionally displaying "Infinity %" completion. Annoying, sure, but nothing game‑breaking. However, one bug nearly drove me insane and pushed me to the brink of quitting altogether - after 25 hours in! I went straight for Critical Blaster mode to unlock the three rarest achievements. This requires equipping a specific setup very early on and never switching it until you beat the final boss. The setup doubles your firepower but reduces your health to a single point. One hit and you're dead, back to the last checkpoint. I died a thousand deaths, no exaggeration. Eventually I reached the boss Cameo Leo. In its second phase, it blows wind and fires bullets at you - and this is where I almost gave up. No matter how hard I tried, my character simply wouldn't jump over the bullets. Sometimes I got two or three jumps, then nothing. It turns out this was a bug introduced in a patch... and the devs never fixed it. Thankfully, I discovered the issue, reverted to version 1.2, and beat the boss without any trouble. Jumping finally worked again. After that, I switched back to version 1.7 and continued to the end. How on earth do the devs not care about this? Anyway, after roughly 40 hours on Steam's clock, I finally reached 100%. I both loved and hated the game, but I still recommend it despite all the bugs. I just wouldn't recommend doing the Critical Blaster run on your first playthrough - it will only make you rage and repeat the same sections or boss fights over and over again.
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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*, 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
Despite being buggy and sometimes laggy, I loved this game. The underlying game is a top notch Metroidvania.
Fun, not too hard, twin stick shooter Metroidvania in the body of your virus infected puppy. More short reviews for hidden gems at my curator page: https://store.steampowered.com/curator/44819215-Lesser-Known-Hidden-Gems/
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.
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.
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.
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.
My coworker is a cousin of one of the devs for this game and she held me at gunpoint to play this game. Emotional scarring aside, I'm glad she did. I love me a good metroid-vania and this one is fantastic AND has a really unique idea for the world the game takes place in. (By "world", I mean sick dog) I absolutely recommend this game to just about anyone!
Another game where a "mixed" recommendation would be perfect. The game is good, the Construct 3 engine is bad. Unplayable (for me) on Steam Deck and has some stuttering on desktop as well. I was using the native Linux build as I couldn't properly run the Windows version. There are also some bugs: sometimes you fall thru platforms, I was able to teleport to non-discovered portals, on one particular boss the button presses sometimes didn't register. It also couldn't work with my 8BitDo controller.
It's very run of the mill. If you've played a Metroidvania before, and have watched Osmosis Jones, you've basically already played this. Negative review because the final boss softlocked and I had to do it again.
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Players by region
Where this game's players are, estimated from review languages.
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