Sub Optimal Co. CD Key

"Sub Optimal Co." is a slow-paced multiplayer submarine game for up to six players. Navigate through 20 unique cave systems, avoiding walls while collecting targets. Operate the submarine collaboratively or solo, enjoying a casual dive experience with friends, all while gaining ranks and customizable features along the way.

Looking for the best price for Sub Optimal Co.? Compare offers from 1 stores on CheckGamePrices to find the cheapest Steam key available. Right now, the lowest price is 3.99$ at Steam.

Current Lowest Price

3.99$

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Steam

3.99$

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Sub Optimal Co. screenshot 1

Release Date

17 Mar, 2026

Publisher/Developer

It's A Sidegame

Reviews

Steam: 57.14% positive (4/7)

Metacritic: -

Check more Steam statistics for Sub Optimal Co.

Game Tags

Submarine Casual Multiplayer Underwater Automobile Sim Online Co-Op Atmospheric 3D Cartoony Singleplayer Co-op First-Person Minimalist Stylized Mystery Parody Linear Physics Simulation Immersive Sim

System Requirements

Minimum:

Requires a 64-bit processor and operating system
OS: Windows 10
Processor: Intel Core i7-4790K | AMD Ryzen 5 1500X
Graphics: NVIDIA GeForce GTX 1050 Ti | AMD Radeon RX 470
Network: Broadband Internet connection
Storage: 4 GB available space

Sub Optimal Co. Steam Price History Chart

Current Steam price: 3.99$
Lowest Steam price ever: 1.99$ — 2026-10-08

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Sub Optimal Co. description

Sub Optimal Co.

Gather your friends for an immersive underwater adventure in Sub Optimal Co., a unique multiplayer submarine simulation. Invite up to five friends and navigate through 20 challenging cave systems, where precision and teamwork are key to success. Operate your submarine while managing movement, using cameras and sonar to avoid walls and hazards.

Your mission is simple: collect targets within the caves and return to base without damaging your vessel. With a focus on slow-paced gameplay, Sub Optimal Co. allows for relaxed yet engaging cooperation, making it perfect for casual play. Enjoy the game with a mouse-only mode, keeping one hand free for your favorite beverage.

Each dive features randomly selected caves, offering a new challenge every time you play. Progress through missions to unlock new ranks, uniforms, and character customization options. However, be mindful that this game uses peer-to-peer connections, requires friends on Steam to join, and lacks in-game chat and NPCs, enhancing the intimate atmosphere. Experience the charm and simplicity of Sub Optimal Co.—a delightful side game for friends.