Borderlands 2

The 15 best co-op games of all time

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Co-op feature Diablo 3

Diablo 3 - Up to four, drop-in, drop-out co-op across the whole campaign

 
How does it work? Every player you add to a game of Diablo III boosts the health of your enemies, increasing the challenge – but far less than it did on launch, when damage increased as well. Otherwise, it’s just Diablo III with more people.

Why is it good?

Chris: D3’s normal difficulty is very easy, but it gains a lot of life if you’re doing it with friends. Experimenting with new skills adds a slapstick dimension to demonbashing that’s better with other people. It’s basically that bit from Lord of the Rings where Legolas and Gimli are competing to kill the most orcs, strung out over 15 hours.

Tom S: Having a friend or two around gives you more freedom to experiment with new abilities. If you’ve got a Barbarian chum to wave and shout and take punches to the face, you can sacrifice a defensive ability for that demonic ghost bat bombing run skill you’ve been dying to try. Few things amaze and terrify a co-op partner as effectively as an unannounced demonic ghost bat bombing run.

Chris: It used to be that co-op Diablo III didn’t work: it was too diffi cult, and actually reduced the amount of loot you seemed to get. Patches have since redressed the balance, and working together to crack Inferno is a satisfying challenge.

Co-op feature Alien Swarm

Alien Swarm - Up to 4 players, online

How does it work? It’s a top-down shooter where you control a squad of four marines shooting aliens in a scripted campaign.
 
Why is it good?

Rich: People love swarms. The swarms of aliens in Alien Swarm (clue’s in the name), are best dealt with by coordination: one of your group becomes point-man, clearing rooms with shotguns and flamethrowers. Another takes up the rear, machinegun blaring to dissuade any would-be alien pouncers. This coordination is the result of a kind of natural, happy trance that players fall into, rather than tiresome enforcement.

Tom F: I’m a Medic, which used to mean I was the sensible, cautious, team player. Until I realised I could take a chainsaw. It’s terrible. It’s a terrible weapon, don’t use it. You can’t just charge into alien hordes, blade revving. OK, just one more go.

Trine - Up to 3 players, online or LAN

 
How does it work? Each player can transform themselves into a thief, warrior or wizard at any time. In the mode we play, you can have two Thieves at once if you like.

Why is it good?

Tom F: It’s a physics-based platform puzzler, which in co-op means dropping heavy objects on each other for fun. The wizard can create boxes and levitate them, and your co-op partner can stand on them. Most of our solutions involved carting each other around on telekinetic elevators.

Graham: Trine’s best class is the grapple-hooking, arrow-firing thief, because of the arrow-fi ring but specifically because of the grapple-hooking. In the singleplayer game, you’re forced to switch away from the thief to navigate obstacles and fi ght larger enemies. In co-op, two thieves are better than one, and combined you’re able to spend more time as a swinging idiot. The best kind of idiot.

Co-op feature Left 4 Dead

Left 4 Dead 2 - Up to 4 players, online or LAN

 
How does it work? - There are lots of game modes now, but the one we play most is still the campaign: four players against the AI-controlled zombie hordes.

Why is it good?

Tom S: I ran through Left 4 Dead 1’s campaign on its hardest diffi culty setting with a group of regulars. We played in the 4 6 5 same small room for many hot, panicked hours until our cries of fear overruled the rattling pistol fire coming out of our speakers. The defence events and climactic mission fi nales offered us a chance to take stock and plan, but the best moments happened when those plans disintegrated in the face of an unexpected Tank charge, or a perfectly placed Witch.

The AI director never quite offered the longevity that it promised, and the monsters lost their scare factor after a while, but Left 4 Dead is still a superb, if harrowing, co-op experience. Ever since Valve ported the fi rst game’s superior maps into the sequel, Left 4 Dead 2 has been the better choice of the pair.

Tom F: There’s an achievement for winning a garden gnome on the fairground level, and taking it all the way through the rest of that campaign. For me, that is the game. It takes both hands to carry the gnome, so whoever’s holding it can’t fi re their weapons. You can set it down and grab it later, but among huge crowds of zombies and charging Tanks, it tends to get kicked around with alarming force.

So you take it in turns to sacrifice your firepower and carry the precious cargo, relying completely on your friends to protect you and your porcelain companion when it’s your turn. If a zombie does get to you, all you can really do is bash him with the gnome.

The carnival finale, set in a huge stadium, was just too intense for any of us to survive it gunless. So when the helicopter finally arrived to bail us out, the real challenge was a frantic scavenger hunt for a chipped red hat among the seething infected. Finding him, grabbing him, and making it out alive was the most nail-biting co-op experience I’ve ever had with the game.