Cooperative browser games for friends who look out for each other

By eggverse · October 2, 2026 · Updated October 21, 2026 · 6 min read

Lights Out gameplay: a crew of four eggs on a dark terrace, golden lantern light bouncing off standing mirrors into the lamps on the wall while a ghost shows in the light.

Want co op browser games where your friends work toward the same goal? In eggverse, Lights Out, Shellbound and Spoiled Egg each support two to eight players in a friends room. Choose Lights Out for light puzzles and rescues, Shellbound for defending a shared relic, or Spoiled Egg for surviving a graveyard together.

One useful way to choose is to ask what happens when someone gets caught. Can a teammate bring them back? Do they wait for the next wave? That small rule changes how your group plays, especially when one friend is still learning the controls.

These are three games from our own arcade. Here is what you will be helping each other do, and what to explain before the first run.

Pick the kind of teamwork your group wants

Three co op games at a glance
Game	Friends room	Shared goal	How a teammate returns
Lights Out	2–8 players	Light every lamp to open the stairs and climb ahead of the dark	A nearby friend relights a caught egg; a friend who turned into a ghost comes back when a beam touches them
Shellbound	2–8 players	Keep the relic intact through incoming waves	Another player stands beside a cracked egg to revive them
Spoiled Egg	2–8 players	Survive waves in the graveyard	Cracked teammates return at the next wave if the crew survives

All three run in a browser without a game download. Use each person’s own device for the online friends room. If you want to talk over Discord or another voice call, arrange that separately before starting.

Lights Out gives you a friend to go back for

In Lights Out, the crew climbs a dark, terraced hill. Stand by a lantern and it shines; carry mirrors to the sockets and bend its light onto every lamp on the wall to open the stairs. Ghosts only appear in the light, and your flash can stun them.

With friends, each terrace needs more lanterns shining at once, so some of you hold the light while others carry the mirrors. A nearby friend can relight a caught egg before their timer runs out. If they have already turned into a ghost, catch them in a beam to bring them back. Keep track of both the climb and the people on it.

Before spreading out, agree who is tending which lantern and who is carrying the mirrors. When someone needs help, name who is going back. It is a simple coordination idea: the caught player knows help is coming, and everyone else knows where their teammate went.

Choose this if your group likes exploring and coming to each other’s rescue. A friend who is learning can still be part of the shared climb, but the rest of the crew needs to notice when they are in trouble. “I’ll hold the light” is a lovely offer. Following them into the darkness is the important bit.

Shellbound solo gameplay: an egg protects the relic as enemies approach. — Shellbound solo demonstration: the relic is the shared objective in friends mode. Protect it as enemies arrive.

Shellbound makes reviving a friend part of the defense

Shellbound gives the crew a relic to defend and four classes to choose from. Hunters chase eggs while siege creatures attack the relic, so the danger is not always in the same place.

Stand beside a cracked friend to revive them. Meanwhile, the relic still needs protecting. Before everyone rushes to the same rescue, call out who will help and who will stay near the objective. In a two player room, that decision is tighter: helping your only teammate also leaves you responsible for watching the relic.

Every three waves, if the crew has enough scraps and space for another defense, you can vote on a build such as a bolt turret, bramble trap or decoy, and a nominated builder places it on a marked pad. Enemies can destroy those defenses. Your group has something concrete to discuss between the frantic parts: where would the next build help most?

Choose Shellbound if your friends enjoy sharing jobs and changing a plan when enemies get through. The waves continue until the relic breaks or every egg is down, so reviving one friend is only part of keeping the run alive.

Spoiled Egg solo gameplay: rotten eggs close in during the first graveyard wave. — Spoiled Egg solo demonstration: the horde closes in during the first wave.

Spoiled Egg asks the surviving crew to hold on

In Spoiled Egg, the graveyard fills with rotten eggs and your group fights through waves. Cracked teammates return at the next wave. If the whole crew goes down, the run ends.

Explain that recovery rule before the first round. A fallen player is waiting for the surviving crew to make it through, rather than waiting for someone to stand beside them. Knowing the difference saves a well meant rescue attempt in the middle of a horde.

Opening new areas is another group decision. Scraps can unlock four additional areas, and an open gate lets both your friends and the horde through. Say which gate you plan to open so the crew has a chance to adjust.

Choose this for friends who want wave survival and shared pressure. If someone strongly dislikes waiting after being knocked out, discuss that before choosing. Next wave recovery gives the survivors a reason to keep fighting, but it does not put a fallen player straight back into the action.

Actual Lights Out gameplay: a crew of four, played by our test bots, lights the second terrace. This eight second clip has no audio.

Get the crew into the same room

Open the game you picked, choose Play with friends, share the room invitation and ready up together. Sending a game page link helps everyone read the rules; sharing the room invitation gets them into your particular group.

Use the first run to learn the controls and recovery rule. You do not need an elaborate tournament. Decide which game suits the people who are here, and leave room for a rematch once everyone understands what happened.

Questions before you play

Does co op mean only two players?

No. Co op means working together toward a shared goal. These three eggverse friends rooms each support two to eight players.

Which game lets us revive a teammate during the run?

A nearby friend can relight a caught egg in Lights Out, and a friend who turned into a ghost comes back when a beam touches them. Shellbound lets another player stand beside a cracked teammate to revive them. Spoiled Egg brings cracked teammates back at the next wave.

Are these all relaxed games?

They involve ghosts, enemies or waves of combat. Choose by the kind of teamwork your group enjoys; cooperative play does not automatically mean an easy or quiet game.

For help organizing the call and choosing a first round, use our browser game night planning guide.

Play with friends

Co-op games for crews who look out for each other: game page →