
Play as an Octopus scientist fighting off sunken skeletons in this frantic aquatic Tower Defense! Discover sea life turrets from unique biomes: Pistol Shrimp! Navy Seal! Death Ray! Deploy turrets whilst dodging enemy bullets as you venture the seven seas!
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): 0.29/day in the week to Sep 11 → 0/day in the week after.
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 25 chart moves that followed a price cut of more than 20% went a median of 10 places towards #1, and the 2,413 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.
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Reviews
Themes across 51 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
Operation Octo is a game where you are not really sure how to begin explaining it but as you go on, it slowly reveals itself and becomes better. What I'm saying is: The best thing you can do is play the game. Don't worry, there is a demo to the game so you won't have to buy it buuuut, I think it's best I describe a bit of the experience: First of all, this game is in some way very similar to the Plants Versus Zombies titles. This is because it has an atmosphere and a feeling that gives the pvz feeling and the gameplay itself isn't lacking. Like pvz, it takes a very complex concept and presents it in a very smart and digestible way. In pvz there almost is no tutorial and doesn't even feel like one. In Operation Octo, the entire world 1 is a tutorial in itself but it is all made in a way you feel like the game is a discovery but you are not being pushed towards it. As for gameplay, the games is a tower defense where you are in a map with a grid of tiles and you must move along to grab pearls (sun) from Clams (sunflowers) but the level itself goes around in this squared map and anemies will come from multiple directions so in some way this is a pvz game but it feels different and it plays in a more intense way because now YOU control a character and if the skeletons kill you, you lose. So the game offers a bullet hell gameplay so you are always doing some thing and your movement is greatly valued as well as time. You need to react to enemy waves quickly while gathering pearls to place down defenses (who are very much like pvz plants) and keep yourself safe and one other thing: your Clams. In this game, your number of clams is limited and preplaced so you need to adapt to the layout and different level obstacles. the reason why you need to protect clams beyond being your main source of income is that you SHARE damage with the clams! And although it's just a fraction of what the clam takes, it's still a very dangerous health drain and can leave you to a minimum of 1 hp. However, if you go on for 5 seconds without suffering any damage you heal passively. The game also is a verily a much more fast paced yet manageable experience with a smaller economy but if a tower (also clam) gets KO'd, it will come back after a while so it makes placement a much more important task while still feeling in a three dimensional atmosphere with multiple frontlines. I hope I have 'briefly' explained the game. But honestly, your best shot at learning the game and understand these concepts is to play the demo. You cannot truly get a clear idea of the game until you play it. I give this game a 9/10. My most played game on steam actually. I still don't think it's absolutely perfect because, nothing is and it still is very much unfinished. The good thing is that there are many updates planned for the future of the game including 8 whopping worlds to play (in the year 2163 they may release though). And letting you on a little secret: Check the discord community. It genuinely was one of the things that increased my fondness of the game. There I found a huge replay ability factor to me: challenges made by the community and you can get some sneak peeks of the game with a small community so it has a much nicer and less mob filled server and the game dev is pretty active so you can actually see him accidentally make spoilers of future worlds or just chat so the discord community gave me a place to find more ways to enjoy the game I would have left otherwise at less than 15 hours.
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All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English, Arabic, Turkish, Simplified Chinese, Czech, Romanian, Ukrainian, Russian, Spanish - Latin America
Hours played at review time, across 51 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
Operation Octo is one of the most chaotic Tower Defense games I have ever played, and I love it for that! Constantly, there will be something to look out for, whether it's collecting things, placing down and upgrading your towers, cycling through your belt to get to the tower you actually need, or praying to god you survive at the end of the level. Sometimes, the chaos is overwhelming even, with bandana and ranged skeletons relentlessly harassing you or nasty special skeletons making quick work of your defenses and getting to your CLAMs. But no matter how bad it may seem (or sound, iykyk), you can overcome it if you keep your calm and and pay attention to your surroundings.
A game I loved in my youth is Plants vs Zombies and I always wondered why nobody tried to use a similar formula. It’s a very tight and charming tower defence game, and with Operation Octo I finally found something reaching for that high! You are an octopus playing against dead pirates. That setup alone is cool as ♥♥♥♥, isn’t it? We got separate stages with their own biomes, several enemy units and unique units on our own side. There is the reliable Pisto Shrimp, who shoots at nearby skeletons, the bumper fish that protects from projectiles, the literal red herring who forces enemies on a wrong track, the explosive Blobfish and many more. It’s fun to get new units after completing a stage or receive money to buy upgrades. It’s the same addictive loop that made Plants vs Zombies so good. The style is also reminiscent of the comic look but unlike its inspiration we don’t play in lanes. We play in a wholly walkable 3D field. That makes positioning even more crucial and your own player can also take some action (mainly as a distraction). At times the field creates a hilarious chaos and I loved to see all the effects and sounds. Sometimes it was a controlled chaos, sometimes I wasn’t sure who was winning. You get what you see with the game, all that for only 5 bucks! And if you are on the fence, the demo is still available. Curious about more indie games? Check out my website: https://freakingindie.com
Very Good Game, Best Game, GOTY Edition
Peak Tower Defense game.
My best friend had me get this game because he said it was "Like Plants vs Zombies Adventures if it was a good game and took all of its potential and fleshed out while removing all of its flaws!". And basically yeah, he was right. I couldn't put it any better myself. This game is GREAT! A fun successor to PvZA for someone who grew up on that game. I know it's not ACTUAL PvZ (counting fan stuff for this because PopCap is... yeah...) but if I'm counting it, this is probably my favorite PvZ game I've ever played. I genuinely implore anyone else who played that game growing up to try this game out. It's criminally underrated and needs the love. The creator is a PvZ fan and you can tell their art was filled with love while making this game. Like always, PvZ fans do better than PopCap themselves. PopCap themselves are out there using AI for ♥♥♥♥ and the fans are making stuff like THIS! Play it.
Best tower defense I've ever played. You can SMELL the fact the devs heavily analyzed PVZ1 and took all the good aspects to put into the game. My only real complaint is that the first boss is basically a glorified damage sponge. And also the game currently is missing a lot of content (despite not being marked as early access). I'm excited to see the game get finished in the future!!!
a very lovely love letter to pvz!! i could really tell that a lot of effort was put into this game the game offers a lot of unique ideas i havent seen in a tower defense game before, the player having to defend themselves instead of a static base leads to really fun gameplay and stops the game from feeling stale, the 3 worlds right now feels distinct (even if world 2, 3 and probably 4 all share the same hazard), having to actively pick up things instead of just moving your mouse over them is fun the conveyor belt is a fun and interesting idea for a tower defense game, it leads to actual strategy on what tower you want in what slot which is nice the artstyle is really distinct, just like pvz all the towers are recognizable and their function can be identified at a glance all towers having upgrades that change how they function lead to more strategy on what potion to give to what tower some minor complaints are that the later levels of world 3 get really spam heavy, not helped with the wonky audio mixing leading to some levels feeling a bit overwhelming with the amount of things going on, while there are towers that help with getting more pearls you cant place down clams yourself and it leads to being underprepared for the spam of later levels not sure if this a common issue but the game sometimes freezes up randomly for a few seconds some towers suffer from lock-and-key design, not really helped by there only being 6 tower slots with only 3 available at a time that you have to shuffle through, later levels are less lock-and-key heavy though the soundtrack is nice but somewhat forgettable, it blends into the background a lot despite the negatives i have for this ramble of a review i really do recommend operation octo, its a short and sweet love letter to pvz and is way more worth your money than whatever 67 pvz3 battlepass package theyre offering you or replanted
one of the best tower defense game I played highly recommend
Si te gusta pvz, juegalo
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