Games Like .synth_protocol

One duck, one gun, an endless night. Shred ghost-duck swarms, drag five colossal lords off the horizon one by one, and outlast the dawn into a red sky where the real night begins. A first-person horde shooter from a two-person team — solo, or in 3-player online co-op.

Why similar: Online Co-Op 32%, FPS 30.4%, PvE 17.7%, Shooter 9.2%, Action 6.5%

An online co-op where you and your mates, or whoever you’ve roped in, clear houses of Groblins. Grab ’em with your bare hands, use whatever tools you’ve got, chuck stuff if you have to. Just get it done, get paid a couple of quid, and gear up to do it all again.

Why similar: Online Co-Op 31%, Party Game 24.5%, PvE 16%, First-Person 7.4%, Physics 6.1%

First / third person multiplayer shooter with single and multiplayer AI bots and monster, premade and procedural environments.

Why similar: FPS 32.8%, Online Co-Op 22.9%, PvE 12.3%, Shooter 12.1%, Action 7.7%

Wanted: Yokai Uprising is a cooperative first-person shooter. Take down waves of yokai solo or with a partner. Choose between two mercenaries with unique play styles to complete the mission assigned to you and defeat the city's most wanted boss.

Why similar: Online Co-Op 31.6%, FPS 29.5%, PvE 15.3%, Shooter 10.2%, Action 6.5%

Replicore is a 1-4 player co-op shooter where you transform into the spherical Core: roll through tunnels, dash between cover, and launch your teammates at enemy robots for explosive takedowns. The shapeshift shooter with cooperative mobility.

Why similar: Online Co-Op 29.4%, FPS 25.7%, PvE 16.6%, Shooter 8%, Action 6.3%

Your neighbors throw dinner off their balconies. Catch it midair with a gravity gun and get it into the pot before the order runs out. One pot, two orders, up to six pairs of hands. Rent is due in three days.

Why similar: Online Co-Op 34.4%, Party Game 30.1%, Physics 10.6%, Funny 8.7%, Action 4.7%

ASTRAL is a first-person shooter set in a futuristic universe. Embody a GRD robot and engage adversaries in dynamic environments, spanning Earth and Off-World locations. Utilize comprehensive weapon customization to craft your personalized loadout, preparing you for intense kinetic action.

Why similar: FPS 29.5%, PvE 18.8%, Robots 14.4%, Shooter 10.9%, Physics 5.8%

Build a ridiculous game with your friends in minutes, then jump in and play it together. Draw the weapons & items, record the sound effects, draw the world, modify the rules and see what kind of cursed game your group creates.

Why similar: Online Co-Op 22.8%, Party Game 21.6%, FPS 18.4%, Funny 8.6%, Shooter 7.3%

Race solo against the clock or challenge your friends, dodging traps and defeating minions to retrieve the Sweet Star from the Evil Candy King. Join forces or face off in up to 8 teams of 1–3 players on a procedurally generated map where every match is a brand-new, chaotic adventure.

Why similar: Online Co-Op 26.9%, Party Game 20.4%, PvE 15.6%, FPS 15.3%, Funny 9.3%

Save London in a co-op action shooter set in a one-to-one recreation of the city. Battle creatures with real-world weapons, mysterious Flux powers, and anything not bolted down.

Why similar: Online Co-Op 33.7%, PvE 19.3%, FPS 15%, Shooter 14.2%, Physics 6.4%

PvP magic spells drawing game. Whatever you draw, becomes real. Use drawn spells to fight each other. There is a magic spells book where you can see over 40+ available spells. You can play teams mode (your friends vs other groups), or solo mode (you vs randoms).

Why similar: Online Co-Op 25.7%, FPS 17.5%, Party Game 12%, Funny 11.3%, Physics 11%

Cut through fungal aliens in this hyper-customizable, mission based looter shooter. Hundreds of hand-crafted upgrades, 4-player co-op, and a little roach man. What’s not to love?

Why similar: Online Co-Op 30.6%, FPS 25.4%, PvE 14.8%, Shooter 9.2%, Funny 7.3%

A co-op game about exploring dangerous planets with your teammates, collecting and selling scrap metal to survive from the corporation. Assemble your own robot to help your team in your own way. Never be a “rusty coffin”.

Why similar: Robots 22.6%, FPS 22.3%, Online Co-Op 17%, PvE 15.5%, Shooter 9.4%

Rocket Bots is a fast-paced arena shooter where you blast through escalating waves of killer machines. Master a brutal arsenal, survive solo or in Steam co-op, climb the damage leaderboard, and push deeper into the swarm.

Why similar: FPS 35%, Robots 27.9%, Shooter 7.7%, 3D 6.5%, Futuristic 6.2%

A co-op zombie horde shooter set in a West Yorkshire town gone very, very wrong. Fight off waves of the undead, collect coins, buy bigger weapons, and uncover the dark secret rotting at the heart of Brumley. Up to 8 players. No survivors expected.

Why similar: Online Co-Op 33.2%, FPS 19%, PvE 15.1%, Funny 9.3%, Shooter 8.2%

Pistol House is a fast paced sci-fi roguelike FPS. Build your power through cards, enhance your gun, and command a spirit companion as you battle relentless, ever-growing mechanical hordes.

Why similar: Online Co-Op 28.7%, FPS 28.4%, PvE 16.1%, Shooter 7.9%, Futuristic 6.4%

Minigame where you have to destroy robots to save the world

Why similar: FPS 31.6%, Robots 29.8%, Funny 15.1%, Shooter 13%, First-Person 6.9%

Rigged is a online co-op game with 1-6 players. You Fight off monsters whilst trying to extract oil from an abandoned rig for Kenneth. Rigged includes physics based gameplay such as the boat and oil barrels.

Why similar: Online Co-Op 34.4%, PvE 15%, Funny 13.5%, Party Game 12.8%, Physics 11.5%

Fight as Talon 13-10 in this FPS roguelite adventure set on a fallen Earth. Combine weapons, augments, and elements to forge devastating builds, and blast through Monarch’s endless machines. Grow stronger each run, solo or with friends.

Why similar: Online Co-Op 29%, FPS 22%, Robots 13.2%, PvE 12.9%, Shooter 8.2%

A co-op adventure game. The mafia wants to get rid of a body. You’re construction workers. Your job: carry a body bag to the top of a skyscraper. Bury it in concrete. Two problems. First: You have to build the way up. Second: The body’s not dead. It fights back.

Why similar: Online Co-Op 24.3%, Party Game 20.3%, FPS 15.2%, Funny 11.7%, Physics 8.8%

Use your FPS expertise and beat it!! The enemy AI in the game will follow the player's behavior and try to surpass you; please do your best to defeat it, it may perform beyond your expectations, and the rest will surpass you!

Why similar: FPS 33.8%, Robots 21%, Shooter 17.3%, First-Person 7.7%, Physics 6.9%

TECTON is a sci-fi action-adventure set in a metropolis turned machine fortress. Control a powerful robotic body as you dodge relentless projectiles and tear through enemy strongholds on your mission to confront the force behind the city’s downfall.

Why similar: FPS 28%, Robots 26%, Shooter 13.3%, Futuristic 11.7%, Action 7.4%

Fight terrorists and robots in this old-school fast paced first person shooter. Grab a friend to help you put an end to their terror with split screen support or each enjoy your own monitor with dual monitor support.

Why similar: FPS 29.1%, Robots 27.4%, PvE 17.2%, Shooter 9.1%, Futuristic 5.7%

Put together giant jigsaw puzzles online with your friends while dealing with chaotic curses, environments, hazards, time limits, and rising difficulty. Also you play as rotund monkeys and you can customize their fur color, butt cheek color, and accessories.

Why similar: Party Game 30.9%, Online Co-Op 29.3%, Funny 12.9%, PvE 11.1%, Physics 8.3%

A 1–4 player co-op fantasy extraction dungeon crawler where teamwork, greed, and survival determine whether you escape with your loot—or lose it all.

Why similar: Online Co-Op 27.1%, FPS 20.4%, Party Game 18.4%, Funny 14%, PvE 11.5%

Projekt Gartenzwerg is a co-op horde defense FPS for 1 to 4 players. Night falls, and thousands of ceramic garden gnomes march on your position. Grab a WW2 arsenal, build your defenses and hold the line until dawn, alone or with your friends.

Why similar: Online Co-Op 41.5%, FPS 25.4%, Shooter 12.4%, PvE 10.2%, Action 6.2%

A first person shooter and tower defense blend where players defend against waves of robots. Play alone or with friends to design paths, build towers, and upgrade weapons to protect key areas!

Why similar: Online Co-Op 23.6%, FPS 22.4%, Robots 14.4%, PvE 13.5%, Futuristic 7.7%

Grab your gear, take a contract, and exterminate hostile alien infestations with up to three friends across unpredictable planets full of chaos, danger, and bad workplace conditions.

Why similar: Online Co-Op 37%, FPS 18.7%, Funny 13.5%, PvE 11.3%, First-Person 6.6%

Deflect the ball launched by the boss, pass it to a friend, then smash it right back into the boss! The more you pass the ball, the faster it gets—and the fight descends into chaos. Hit the boss. Not your friends.

Why similar: Online Co-Op 31.2%, Party Game 29.2%, PvE 12.2%, Physics 10.3%, Funny 8.4%

Classic zombie round survival. choose a map and see how many rounds you can survive with friends or alone.

Why similar: Online Co-Op 40.1%, FPS 23.8%, PvE 18.1%, Shooter 12.5%, Action 5.5%

Fullsenders is a 1-4 player co-op movement shooter based in an AI-overrun world... Master fast, fluid movement and advanced shooting to destroy take back the world. Gather resources, complete objectives and extract to level up and upgrade your Fullsender... Just do it before night time comes.

Why similar: FPS 21.4%, Online Co-Op 17.5%, PvE 15.1%, Funny 11.3%, Futuristic 9.8%

3v3 multiplayer chaos: three invisible ghosts trash a house while three hunters track them by radar and suck them up with vacuums. You can't see the ghosts — only hear the crashing. Catch all three, or wreck the place before the three-minute clock runs out.

Why similar: Party Game 37.6%, FPS 29%, Action 9.4%, Funny 8.7%, 3D 5.2%

Tower of Portal is a little Indie FPS Shooter, where you control a soldier with the mission to destroy the AI Central Computer that controls the machines spreads in the city. Your mission is avoid this domination through the machines.

Why similar: FPS 34.4%, Shooter 16.3%, PvE 16.1%, Futuristic 13.2%, Action 11.1%

Your friends are bagging over $15M in cash, but you’re here to ruin the score. Sabotage their heist at any cost while surviving lethal random events.

Why similar: Party Game 26.3%, FPS 18.1%, Online Co-Op 14.8%, Funny 13.1%, PvE 11.2%

Sound is everything. Explore a dark, misty world, activate mysterious crystals and survive a relentless hunter who sees through sound. Scream to run faster, stay quiet to hide, and use the environment to your advantage. Every noise has consequences.

Why similar: Online Co-Op 34%, Party Game 28.4%, Funny 12.6%, FPS 11.8%, Physics 4.9%

Your hands decide the fight. Every burn, poison and blind goes off only if you spell it faster and cleaner than the wizard aiming one back at you.

Why similar: Online Co-Op 30.3%, FPS 18.6%, PvE 13.7%, Funny 9.2%, Shooter 9%

Guardians Frontline is a sci-fi VR shooter that makes you a soldier and a commander. Fight off enemies and build bases in a single-player and co-op campaign, plus PvP game modes with full cross-play support.

Why similar: Online Co-Op 23.2%, FPS 21%, Robots 19.4%, PvE 12.9%, Futuristic 7.4%

A chaotic multiplayer party game where you drink, fill your bladder, and compete with your friends to pee on as much as possible. Drink up, aim well, and claim the most territory to win!

Why similar: Online Co-Op 32.1%, Party Game 24.6%, PvE 17.6%, Physics 8.1%, Funny 6.8%

No voting. No meetings. Everyone has the power to execute! Expose the impostors, protect your crew, and survive in this 4-8 player social deduction game. Enforce justice with your multi-mode AK-47. Pure chaos with built-in proximity voice! 🔊💥

Why similar: Party Game 23.5%, Online Co-Op 19.1%, FPS 14.6%, Robots 13.1%, PvE 10.9%

Harvestin season is a chaotic 1-4 player online co-op. It's almost harvestin season, and you know what that means? Fertilize the Crops, inject steroids into your prize pigs, train yourselves in the art of combat, and by nightfall SLAUGHTER THEM ALL.

Why similar: Online Co-Op 28.3%, FPS 21.3%, PvE 14.1%, Funny 11.7%, Shooter 8.5%

In a survival struggle, take on roles of three unique classes, gather resources, evade horrifying creatures, and protect the Sanctuary in a world filled with mysterious events. Explore the open world with vehicles and engage in strategic cooperation.

Why similar: Online Co-Op 29.7%, FPS 19.6%, Robots 18.4%, PvE 13.5%, Futuristic 6.8%

CATACLYSM: Even Angels Sin is an FPS Bullet Hell with UNLIMITED movement. Breach the Sinner's Paradise as the Heaven Breaker and reclaim the divine realm from hordes of false Angels.

Why similar: FPS 38.7%, PvE 24.7%, Shooter 14.7%, First-Person 7.1%, Action 6.5%

Make cute things cry!

Why similar: FPS 34.4%, Robots 27%, Shooter 13.8%, Futuristic 7.5%, Action 6.2%

A 1-4 player physics-based hunting simulator. While relaxing and off-roading at camp, you suddenly trash your ride deep in the wilderness. To upgrade your gear and work your way back home, you have to learn How to Hunt.

Why similar: Online Co-Op 36.8%, FPS 17.2%, Funny 15.3%, Shooter 11.4%, Physics 10.7%

You are brought to another dimension, to help a weak faction fight their aggressive enemy. You will need to upgrade your arsenal and abilities, to take on this task and become victorious.

Why similar: FPS 35.7%, PvE 22.5%, Robots 16.9%, Shooter 13.3%, First-Person 7.1%

An online co-op action game up to 6 players. Play as mischievous foxes to locate and steal fully physics-based loot while fighting humans and other rival foxes. Play solo, online with or against your friends!

Why similar: Online Co-Op 33.8%, Party Game 21%, Physics 11.5%, PvE 11.3%, Funny 10.4%

Become a two-foot-tall teddy bear in this VR wave shooter where you wield homemade weapons, build defences, and protect a little girl from her nightmares. Play solo or online in up to 4 player co-op.

Why similar: Online Co-Op 28.8%, FPS 25.3%, PvE 16.2%, Shooter 9.5%, Funny 5.6%

Drunk Mages is a co-op game. Players are drunk wizards trying to brew potions. Being drunk makes things a bit harder. Each level has its own unique design and different challenges that must be completed.

Why similar: Online Co-Op 35%, FPS 25.5%, Party Game 14.8%, PvE 10.6%, First-Person 6%

A chaotic physics-based co-op cooking game for up to 4 players. Scavenge ingredients, combine them by hand, and race to feed an ever-hungry volcano before time runs out and it feeds on you instead.

Why similar: Party Game 26.5%, Online Co-Op 25.7%, PvE 14.2%, Physics 10.7%, Funny 10.2%

Bloodlit is a hardcore first-person shooter designed to unite slow-paced oppressive survival horror tension with fast-paced reflex-driven close-quarters combat. Carve your path through the blood and ruin. Regret is for the dead.

Why similar: Online Co-Op 30.6%, FPS 28%, PvE 17.3%, Shooter 10.2%, First-Person 5.2%

A spooky teddy bear first-person shooter where you defend your owner from waves of her nightmares. Play solo or join your friends in up to 4 player online co-op.

Why similar: FPS 23.4%, Online Co-Op 17.3%, PvE 16.4%, Funny 11.6%, Shooter 10.2%

Chained Together Crossing is a Co-op game where you and up to 4 friends are handcuffed and have to get to the other side of the street. Levels get progressively more difficult, and sanity will be lost.

Why similar: Online Co-Op 36.1%, Party Game 28.2%, Physics 11.4%, Funny 10%, Action 6%

A round-based, first-person online party game for up to 8 players! Poopers clog toilets upstairs; Plumbers scramble to fix pipes below! Dodge the scary Landlord, fight poop monsters, and invade the enemy floor to sabotage your way to victory! Two teams. One building. Only one winner!

Why similar: Party Game 32.4%, Online Co-Op 28.3%, Funny 14.3%, PvE 13.5%, First-Person 3.6%

Shotgun Farmers is the multplayer shooter where missed shots grow guns. Fire your bullets into the ground to plant your ammo. The longer a gun plant grows the more ammo you will get!

Why similar: FPS 22.3%, Online Co-Op 21.1%, Funny 12.2%, PvE 11.4%, Shooter 10.2%

The Research laboratory's Guardian Unit faced with a hellish mission to exterminate invincible cephalopod creatures in this one-of-a-kind immersive co-operative Horror FPS.

Why similar: Online Co-Op 25.1%, Party Game 21.8%, FPS 19.5%, PvE 12.5%, Shooter 7.6%