Top similar games like Sub Optimal Co.:

Prison Pocket Patrol is a co-op prison guard simulator. Search, scrub, and sort incoming inmates according to the warden's strict orders. Deal with brawls, turn a blind eye for a bribe, and pocket confiscated contraband to fund shiny new checkpoint upgrades!

Hadalis is a co-op deep sea survival game where every mistake can be fatal. Alone or with a crew, descend into the hadal zone while keeping your fragile submersible intact as pressure, creatures, and failing systems push you to the brink. Will you endure the abyss?

This is the Free Non-VR version of IronWolf VR. A co-op submarine game with a light touch on realism, making the submarine sim genre accessible to a wider audience.

Explore harsh wilderness together in Cozy Offroad Simulator Together, a relaxing co-op driving adventure where teamwork, smart preparation, and realistic offroad mechanics help you survive mud, snow, storms, and dangerous terrain 🚙🌲

Embark on 3D online multiplayer escape rooms in Escape Party. Solve puzzles, test your speed, and conquer challenges together.

A crew of players experience the tense atmosphere of a WW2 U-boat, manning the stations in this realistic co-op simulation game. Several crews may play together in a wolfpack, completing missions based on iconic events during the different stages of German U-boat warfare. Solo play included.

Brew & Bloom is a barista sim where every detail matters - from pulling the perfect espresso shot to designing the cozy corners of your dream café. You’re not just making coffee - you’re crafting a space with soul.

A sci-fi co-op game for up to 4 players. Rush into dangerous high-tech facilities and fix their broken systems before they collapse around you!

Domino! Is a casual domino simulator where you can freely build domino blocks and trackball blocks.

Experience general aviation as never before! World of Aircraft is a series of stand-alone simulators that each focus on a specific kind of flying. World of Aircraft: Glider Simulator includes a series of (motor-) gliders and tow aircraft based on a high definition flying area.

Pilot a submarine through a maze with your crew — from the inside. Manage systems, repair breakdowns, and survive whatever's out there. No ocean views included.

A co-op adventure about driving your Recreational Vehicle home.

Step into the driver’s seat in Bus Bound, the latest title from the creators of Bus Simulator 21. Explore a vibrant city behind the wheel of officially licensed buses, and help transform it into a pedestrian-friendly paradise—one stop at a time.

Team up with your crew in this chaotic co-op adventure. Pilot a falling-apart submarine to the bottom of the ocean to find Captain Mega-Hook’s treasure. Repair leaks, dodge dangerous wildlife, and work together to keep from sinking. It’s suboptimal, but the loot is real.

Yugo: the non-game is a virtual space where you can drive a car, listen to the radio, and invite people to talk and share the experience with.

Take charge of the car trade with Car Dealership Simulator 2! Buy, modify, and grow your dealership with strategic sales. Every opportunity will take you closer to the top of the automotive market!

Manage an old, rundown nuclear power plant with up to 6 friends in online co-op. Fix hazards before you put the reactor in critical condition, manage the chaos to avoid a meltdown, and try not to get in the way of your coworkers.

Carry grandpa's legacy from Willowbrook to the world. Open world, up to 4 friends. Cook while the truck moves. One drives, one navigates, others at the grill. Bump? Tomatoes fly. Patty burns, driver helpless. One budget, fuel or stock. Someone will spend it without asking.

A free introduction to the full version of Car Cleaner Simulator is your chance to make dreams come true in a fabulously clean business. Run a car wash for Clever Emma in Winston Springs.

A VR arcade game that immerses you into an underwater experience, compete with your friends and family to achieve the longest dive and collect the highest number of pearls by collecting the bubbles that emerge from the abyss!

Run your dream pizzeria solo or with up to 6 players in chaotic online co-op multiplayer. Cook authentic pizzas, automate your kitchen, customize your restaurant, survive disasters, invest in stocks, gamble and build the ultimate Italian restaurant empire.

Explore our planet's ocean to discover animals, plants, and shipwrecks. Take photographs to document your findings and sell them to fund upgrades to your submarine.

Grab your helmet and fire up the engines! This is raw construction - sweat, smoke, and steel. Operate cranes, loaders, rollers, and more as you and your CREW carve terrain, raise structures, and pour asphalt to finish the toughest jobs together.

Build your café, brew perfect coffee, and sabotage your rivals in this chaotic multiplayer café simulator. Start small… and learn how far you’re willing to go.

Totally Secure Airport is a chaotic co-op sim where you play as an airport security guard. Search through weird luggage and decide who flies and who cries. Documents? Check. Suitcases? Shuffle. Find troublemakers with your friends, but be quick - the airplane is taking off soon!

A first-person liminal exploration game where you walk on any surface, navigate disorienting spaces, and solve light environmental puzzles through observation and simple interactions.

Mowing lawns has never been this much fun! Relax with your friends in online co-op, upgrade your equipment, shape beautiful gardens, and enjoy the experience. Join the fun with 1-4 player co-op!

Grab your axe, hop on the handcar, and lose yourself in the forest. Chop trees, upgrade your gear, and enjoy the ride — alone or with a friend

Assemble your friends in a squad in this satisfying and challenging cleaning game. Get paid by cleaning different types of properties by removing trash, mopping stains and doing other cleaning tasks. Upgrade your gear to be able to take on bigger projects to become the best squad out there.

Get behind the wheel of 13 realistic city buses licensed by known city bus manufacturers such as Mercedes-Benz and MAN. Keep an eye on the traffic code and drive your passengers safely to their destinations through five characteristic city districts.

Step into the Wireframe inner system and take control of your very own physics based racing vehicle! 

Open and manage your own gun shop. Start small and expand/upgrade your business! Oh and also, crime rates have been going up lately, so be careful out there!

Piece of Ship is a chaotic co-op for 1-4 players where survival is optional, but company loyalty is mandatory. Grab the singular wrench, patch the cracks with tape, and try to keep this bucket afloat! Remember: asking questions about the mission objective is strictly forbidden.

Craft coffee masterpieces, grow your dream café, and sabotage the competition in style! Coffee’s hot, competition’s hotter!

BURGER, NO PLEASE! — a trashy co-op for up to 4 players where you work in fast food and get ingredients in absurd ways: fish from toilets, cola from rusty taps, cheese from rats. Cook, sabotage, and laugh until you cry!