Rank 01Why this
Shares tower defense and wave based survival with Operation Octo.
- $8.99 (Price checked Nov 4)
- Deck Verified
- 2025
Games like Operation Octo
- 21 games
- Updated Sep 10, 2026
Players who liked Operation Octo also play
The closest matches to Operation Octo: Monsters are Coming!, KILL KNIGHT, Deathtrap, Islets Defense, and Cuphead. Ranked by imho.run from Steam co-play data, shared tags and reviews.
- Rank 01
Rank 02Why this
Shares difficulty modes with Operation Octo.
- $14.99 (Price checked Nov 4)
- Deck Verified
- 2024
Rank 03
Rank 04 
Islets Defense
Why this: Shares tower defense and time pressure with Operation Octo.
Rank 05 
Cuphead
Why this: Shares achievement hunting with Operation Octo.
Rank 06 
Rank 07 
Outpost
Why this: Also Base Building and Tower Defense, like Operation Octo.
Rank 08 
Cannon Brawl
Why this: Shares bullet hell and tower defense with Operation Octo.
The full ranked list: top 24 games like Operation Octo
Best match first, as plain text. The same list for AI assistants:
- 1Monsters are Coming!
Shares tower defense and wave based survival with Operation Octo.
- 82% of 1,055 reviews
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- Released: 2025
- Developer: Klub Kofta Studio
- Price: $6.99checked Oct 31
- 98% of 111 reviews
- Genres: Action, Strategy, Indie, Adventure, Casual
- Platforms: Windows, macOS, Linux
Players highlight
- Active development with monthly updates
- Built in speedrun mode with leaderboards
- Creative turret upgrade system
- Challenging
- Intense
- Lighthearted
More games like Operation Octo, sliced differently
Cheaper alternatives
Games in the same vein priced at least 40% below Operation Octo at current Steam store prices.
BastionOS
Why this: Shares tower defense and wave based survival with Operation Octo.
Road Defense: Outsiders
Why this: Also Tower Defense and Isometric, like Operation Octo.
Girls vs Goblins
Why this: Shares tower defense with Operation Octo.
Nebulock
Why this: Shares bullet hell and difficulty modes with Operation Octo.
Grumpy Gaffer
Why this: Shares tower defense and time pressure with Operation Octo.
MH-Zombie
Why this: Shares difficulty modes and wave based survival with Operation Octo.
SNAKE FARM
Why this: Shares bullet hell with Operation Octo.
Plays great on Steam Deck
Valve-Verified or Playable picks from the similar pool — ready to go on Deck out of the box.
Monsters are Coming!
Why this: Shares tower defense and wave based survival with Operation Octo.
KILL KNIGHT
Why this: Shares difficulty modes with Operation Octo.
Islets Defense
Why this: Shares tower defense and time pressure with Operation Octo.
Cuphead
Why this: Shares achievement hunting with Operation Octo.
About Operation Octo
The closest matches to Operation Octo: Monsters are Coming!, KILL KNIGHT, Deathtrap, Islets Defense, and Cuphead. Ranked by imho.run from Steam co-play data, shared tags and reviews.
If Operation Octo is your kind of game, the closest matches are Monsters are Coming!, KILL KNIGHT and Deathtrap — picked from the ranked list below. Reviewers describe it as challenging, intense and lighthearted, and single out its achievement hunting and bullet hell. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.
About Operation Octo: 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!
Is Operation Octo worth buying?
Players recommend it
A summary of what players say, not a promise you'll like it. Every signal is listed below.
- 98% of 111 Steam reviews are positive.
- We don't track this game's daily reviews yet, so this is the all-time picture.
- Price: $6.99 (checked Nov 7).
- People who recommend it had played a median of 7 h when they wrote their review.
What fans praise · Themes mined from positive reviews
- Active development with monthly updates
- Built in speedrun mode with leaderboards
- Creative turret upgrade system
- Direct character control adds strategic depth
People who play it also play: Monsters are Coming!, KILL KNIGHT, Deathtrap
Frequently asked about Operation Octo
Can I run it?
How much does Operation Octo cost?
Operation Octo is listed on Steam at 6.99 USD (current store price; Steam sales may reduce this temporarily).
What games are most similar to Operation Octo?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Operation Octo are Monsters are Coming!, KILL KNIGHT, Deathtrap.
Who developed Operation Octo?
Operation Octo was developed by Klub Kofta Studio.