The games that make you feel something are the ones you always remember.
And they don't always have to be positive experiences; playing games, you experience the whole gamut of human emotion, from frustration to anger to sadness; from fear to exhilaration.
In this list we have ten stories from PSM3's writers about the times their favourite games triggered something truly, memorable inside them.
The writer Shaun Curnow, freelance contributor to PSM3
The cause Silent Hill 4: The Room
In 2004 I moved to Bath, away from friends and family and into a tiny, lonely bedsit. With hindsight, it was perhaps not the best time to start The Room. It is, lest we forget, a horror about a man locked mysteriously in a tiny, lonely apartment that fills with portals to a dimension of melty, lumpy creatures of horror.
Kept housebound by a lack of funds, friendless in a new city and with only a dusty PS2 for company, The Room struck in me an agoraphobia and terror that far outweighed any scripted scares in the game. Note to past self: get out more.
The writer Martin Davies is an illustrator, freelance contributor to PSM3 and regular contributor to Edge magazine
The cause Half-Life 2
Games can conjure a powerful sense of place. And no one is as good at it as Valve, whose stories unfold silently as you explore. The coastal road in Half-Life 2 - with its cold blue overcast and quiet, slatted buildings - is one long gut-punch of melancholia, loss and loneliness. As you travel you spot one family's failed resistance against the Combine, watch it unravel in half-packed suitcases, scattered possessions and improvised barricades. For me, that was the loneliest road of all.
The writer David Meikleham is a former editor on GamesRadar.com, and is now a freelance contributor to PSM3
The game Condemned 2
Fear can drive a man to desperate lengths. Or horrendously embarrassing ones. After four straight nights having my nerves frayed by homicidal hobos and haunted toy factories full of possessed dolls, my courage finally trotted off the reserve when faced with Condemned 2's sodding terrifying grizzly bear.
More homicidal than your average picnic-loving bear, I found the encounter where it chases you through an abandoned cabin so unnerving, I actually barricaded the living room door with a chair and a coffee table for the duration. You might think I'm making this up, and it'd be great if you were right. But you're not. Terrifying...
The writer Joel Gregory is reviews editor on Official PlayStation Magazine
The game Red Dead Redemption
Red Dead was my game of 2010, for many reasons. The epic narrative, the brilliance of Marston as a character, the soundtrack - everything. But perhaps its genius is in the sense of isolation. The scale of that bleak landscape, combined with the personal nature of Marston's quest, makes your journey seem just one thread in a much wider world. It also makes for some beautiful, almost unparalleled tranquillity - trotting serenely across a huge expanse of desert is peaceful in a way that's almost unique in gaming. Amid all the carnage, even a cowboy needs time to reflect.
The writer Justin Towell is a content editor for GamesRadar.com and a PSM3 contributor
The game Kingdom Hearts
Yes, real love. Not for Kairi - she's about 14, which is all kinds of wrong. But the idea of giving someone a Paopu fruit to bind your destinies together? Lovely. So when Kairi goes missing and Sora forlornly scratches a Paupu fruit onto the cave portraits, I was right there with him. In fact, it locked me in for the next 60 hours. I know how you feel, Sora buddy. Love is everything - let's get your girl back.