Co-Op multiplayer games take the cake when you’ve missed out on some fun with friends. You could easily hop on a Discord call, trash-talk and have a blast playing some of the best co-op multiplayer games on Steam–all for the steep entry price of just zero.
Some of these free co-op multiplayer games on Steam will test your motor skills to the limits, while others will give you a casual dose of fun to just chill out and relax with your gamer buddies. Either way, the best part is that all of these games are free on Steam, so you can play all of them by paying next to nothing.
1. No More Room In Hell
If you’re a fan of Source mods and Left 4 Dead, then No More Room in Hell is one of the best co-op zombie-shooting FP multiplayer games out there. You’re tasked to survive a zombie apocalypse along with your online buddies. You can get infected. If you do, you can keep quiet or tell your friends and get a merciful and painless death.
There are loads of things you can do to make No More Room In Hell all the more realistic. With custom servers allowing you to disable in-game features like crosshairs and even your HUD, No More Room In Hell can take your average zombie shooter and make it all the more difficult. The game offers minimal ammo and takes the survival aspect of the game pretty seriously.
The game has been constantly improved over the years. While No More Room In Hell is getting a sequel that’s still in early access, the current build of the first iteration still has a timeless charm and feel to it. Sure, the gameplay loop can get repetitive sometimes, but No More Room In Hell has received tons of quality-of-life updates over the years, making it worth all the salt.
2. Skyforge
Skyforge absorbs you and your friends in a world of sci-fi adventure. The breathtaking world of Aelion is not what it seems, with hostile forces threatening the planet’s peace. As an immortal hero, it will be your job to step up and save the planet from imminent destruction. The characters are class-based, with over 19 to choose from.
Each class has a unique set of celestial powers you must master to win on the battlefield. Whether you want to unlock the true potential of nature’s power with Grovealker or test out Revenant’s life-sucking abilities, all the classes in Skyforge pack a strong punch as you face the perils of the land.
Skyforge features an addictive gameplay loop, a dynamic combat system, and a vibrant world. There are over 100 different interstellar locations for you to explore. If it gets lonely on the road or the battles get too tough, you can join forces with other immortals in the game. A maximum of ten players can team up in co-op battles.
3. Oh…Sir!! The Insult Simulator
Oh…Sir!! The Insult Simulator invites you for hours of humorous and mud-slinging fun. This 1v1 puts you in a battle of insults against your friend. The game features a wide array of fleshed-out characters. With grumpy old ladies, retired hipsters, and mean Russians, there’s an impressive roster to explore. Each of them is sensitive to certain insults, and your goal will be to exploit that to win the game.
Both players will have to choose words and phrases from a common pool, so get creative. The Insult Simulator spices things up with different games mode. You can take on friends and players from around the cloud from the Imaginary-Friends mode to the Real-Life Friends mode. All in all, there’s never a dull moment in the game. Just make sure you don’t go too far with the verbal carnage.
4. Alien Swarm: Reactive Drop
It’s do or die in Alien Swarm: Reactive Drop’s skin-crawling, alien-infested world. Building upon its predecessor’s success, Alien Swarm: Reactive Drop offers an equally immersive experience. A team of four players can partner up in the co-op mode. They will all need to work together to advance through levels and crush waves of aliens.
You can choose which role to play. Whether you want to be the savvy tech guy or steal the spot as the Officer, you are in control of your gameplay. However, even with 40 pieces of equipment at your feet, taking on the Swarms is not easy since they spawn randomly and without warning. But watch out for each other’s backs, and you might just make it. The top-down shooter game promotes a healthy sense of competition, with over a hundred different Steam achievements to unlock.
5. SYNTHETIK: Arena
Get ready to step into heart-pounding action in SYNTHETIK: Arena. Building upon the success of the original Synthetik, this standalone expansion offers more of the unique gun-play and gripping action combat. You will spawn as the human consciousness of a forgotten Android prototype with the responsibility to end the madness of the Machine Legion. You and your friends will be playing through a bunch of missions, taking on relentless enemies, and solving puzzles. Not only that, but you will have to work as a team, or it will be lights out in seconds.
You can also share items, loot, and buffs with your friends. There will be five stimulating but exacting challenges for your team to work through. With different weapons to pick from and one-of-a-kind game mechanics, Synthetik: Arena is bound to scratch that itch for a thrilling top-down shooter for the price of zero.
6. Worm.is: The Game
If you loved Snake.io back when you were a kid, then Worm.is: The Game will be right up your alley. Like its inspiration, you start as a small worm with only one objective: eat food to become the longest worm in the game. Your friends will also slither around you, so make sure you don’t get eaten by them. Keep an eye out for those nasty viruses as well.
There are two game modes at the moment: Free-to-Play and Random mode, where you get paired with random teams. With its simple game mechanics and bright colors, Worm.is: The Game is a blast from the past with limitless entertainment value for you and the gang and is one of the best free multiplayer Co-Op games on Steam.
7. Dungeon Defenders 2
With the mighty kingdom of Etheria under attack, it’s up to you and your friends to step up and defeat hordes of enemies. Dungeon Defenders 2 is an interesting balance of tower defense games and action RPGs. Choose the type of hero you want to be from the four classes and step right in the middle of nail-biting action. Each hero comes with his own unique set of abilities, and players have the added advantage of swapping between heroes during battle.
You will be tested across different maps, including massive castles, enchanted forests, and active volcanoes, with enemies lurking around every corner. As a hero, you will need to strengthen your defenses with flamethrowers and sharpen your skills to slash down enemies in the heart of battle. You can either take on these alone or pair up with friends in the co-op mode. All in all, Dungeon Defenders 2 is one that never gets boring!
8. We Were Here
We Were Here tests your friendship in the most exciting way possible. Both you and your friend have been stranded in this innovative puzzle co-op game. Separated from one another in a castle amidst a frozen wasteland, you will need to find your way back to one another. However, with no means of communication except a handheld radio device, things are more challenging than they seem.
Each room will put your wits to the test. Inspired by titles like Myst, We Were Here offers a unique gameplay experience for each player. Just ensure you have a working microphone before you embark on this mind-bending expedition.
Wrapping Up The List
So, whether you’re looking for an unforgettable sci-fi adventure or want to solve a good old puzzle game with the gang, our list of the top 6 best free co-op multiplayer games on Steam has something for everyone. Each game offers you and your friends guaranteed adventure and hours of fun.
So, pick a title and dive right in. You will lose nothing since these games don’t have a price tag. Let us know which of the best free Co-Op Multiplayer games you and your friends play in the comment section.
