10 Genre-Defining Horror Games

When thinking about horror games, many fans tend to think of the IPs that ended up serving as the genre's backbone: with specific games writing out the genre to be exactly what it is today. They're the pillars and the foundation, and these games remain iconic for that very reason.

In one way or another, these games influenced the survival horror genre into what we know it as now, and it's genuinely difficult to think of a what-if where these games didn't exist, because it's that intertwined with the genre.

While they may not be the most popular games of all time, they're giants in gaming — and they're giants for a reason. At the very least, it's always worth paying respects to those giants for making horror what it is.

So when journeying through the horror genre, pay attention to how all roads lead back to one of these games.

10 System Shock 2

FPS Horror Has Never Been So Terrifying

The thing is with FPS is that it's already pretty tough to adapt into horror — mainly because of the immense amount of power players have in FPS games, versus how horror games are meant to keep you feeling powerless — but sometimes, a game comes along that walks the line and nails both. System Shock 2 is one of those games.

In a world that interacts with you just as much as you interact with it, you're going to manage to be equal parts empowered to continue, yet helplessly terrified by everything going on. That's the power of a good immersive sim, and to this day, it's highlighted as one of the greats because of how it was executed; so much so that you actually wouldn't believe the game came out in 1999.

It's eerie from every corner of the map, and it only becomes more intense in the fear department as you go on. And the best part is, it feels completely different on a second playthrough because of how different you can make your build, only for the game to find new ways to freak you out.

It ended up serving as the foundation for countless other games inspired by it, with BioShock being one of the most prominent examples; that should tell you enough.

9 Five Nights at Freddy's

Completely Revolutionizing Indie Horror

When I talk about the influence that Five Nights at Freddy's had on horror gaming, I am always talking about the original, first game — sometimes, the first couple sequels can be roped into the conversation, but everything after that is just disrespectful to everyone's time (and their intelligence).

However, that first game was (and honestly, still is) something special. It came out during the peak of the Action Horror Era, where every AAA horror game was focused on being as action-packed as possible rather focusing on any atmosphere. Yet, here comes an indie game made by a single person that completely rewrites everything horror games could be.

Even still, I think the camera/power mechanics that this game founded are really cool, and very distinct to this game (and honestly, the whole franchise). It ended up just being disappointing that the sequels decided to focus on the same thing rather than continue to re-invent the genre's mechanics.

Regardless, you can't deny that the genre has never been the same, especially as this game continues to thrive in the mainstream.

8 Phasmophobia

Playing With Friends Has Never Been More Fun

While there are countless multiplayer horror games that are ridiculous amounts of fun, none of them manage to actually terrify groups together as well as Phasmophobia can. Normally, it's challenging to scare people when they're with someone else (the fear ends up being shared, and halved as a result) — but these ghosts manage to do just that.

In Phasmophobia, you play as a group of paranormal investigators having to go through various areas and collect evidence. Of course, there is far more than what meets the eye, and things are not going to go easy on you; even then, you're going to have an incredible time.

The way co-op horror has been done has always turned the game into something action-centric first to keep players engaged, but Phasmophobia shows that you can keep players hooked in without having to sacrifice the actual horror elements in a horror game.

And when Phasmophobia 1.0 officially drops in 2027, it's just shaping to be so much better, and I can't wait to experience just how much more terrifying fun I can have with my friends.

7 Amnesia: The Dark Descent

You Better Think Fast

The very fact that many horror games now prioritize stealth and hiding while being completely powerless comes from Amnesia: The Dark Descent, which popularized the mechanic. While the Clock Tower games were technically the first to introduce the mechanic through a point-and-click adventure game, it was Amnesia that showed how it would be fully realized in a 3D setting.

In this game, you wake up with amnesia (yes, shocker), with the only thing that you remember being someone you have to kill. Of course, it's not that simple in a castle full of monsters that push you to the brink of insanity.

Yet, you persevere, you persist, and you're terrified regardless. It's one of those very rare games that keeps you motivated and encouraged while constantly kicking you while you're down; it's practically an art at this point.

This game ended up inspiring countless others, with Outlast being one example that ended up becoming about as iconic as Amnesia itself — all due to showing how terrifying that gameplay loop actually can be.

6 P.T.

Forever Grieving

Every single day when I remember P.T.'s stunning introduction and its equally quick and devastating cancellation, my heart hurts. Seriously, as a die-hard Silent Hill fan, the grief is as real as the day it was taken out of the store — and to this day, it's difficult to find a horror game that terrified me anywhere close to the same level a trailer had.

This playable teaser came out in 2014, during the height of the Action Horror Era, and suddenly, we're seeing a come-to-religion moment within the genre itself in one of the most twisted, disturbingly exciting walking sim that nailed a simple premise: escape the looping hallway. There's an asterisk to this, of course, because it's an insanely difficult endeavour. Yet, what it showed players was astronomical.

Suddenly, there was a turning point; horror as a genre shifted into once again being horror-first (which, side note: it is absolutely crazy that there was a whole era within the genre where the focus of the genre wasn't even the main focus during a game's development). Countless franchises that had focused on an adrenaline rush turned the attention to spiking your adrenaline in other ways — mainly by terrifying you.

Simply put, P.T. saved the horror genre from itself, and I will forever grieve what it could have been. Yet, so many other games pulled direct inspiration from this title, with Visage being one of the most popular.

5 Alien: Isolation

That A.I. is Something Else

Want to know a sure-fire way to scare your players? Make the enemy A.I. just as, if not a bit more intelligent, than your players. This is the line of logic that Alien: Isolation follows, and what results is something that's truly classic, and truly terrifying. There's no exaggeration: the enemy A.I. we see in the Xenomorph was revolutionary for gaming as a whole, much less for the horror genre.

Nonetheless, it took horror by storm, with countless other games implementing similar techniques with their own stalker enemies (Mr. X is a prominent example that follows the Xenomorph's formula).

And as you play, this A.I. learns and adapts from you, crafting an experience that will end up being uniquely terrifying to you in ways that will strike you more personally — that's all the more apparent on harder difficulties when the Xenomorph is a literal apex predator. Just saying, the vents aren't anywhere near as safe as you first believe them to be.

Considering how much this game impacted the genre, it makes me all the more curious to how the sequel plans to impact gamers in the same way.

4 Dead Space

Horror Isn't Limited by Sci-Fi

When you think of sci-fi as a genre, you don't immediately think of sci-fi horror unless you're already a horror fan like I am, which makes genuinely scary sci-fi horror entries all the more terrifying and all the more alien (pun intended). Dead Space manages to walk that fine line wonderfully, in both the first and second games (while the third game has its perks, it's definitely more action-oriented).

Dead Space showed players how sci-fi horror doesn't just work, but it exists in all kinds of manifestations outside of Alien — each growing more grotesque than the last. Combine this with having to cut off the limbs of the Necromorphs rather than shooting them to kill them outright, you're already steeped in newness.

Not to mention, it's just got a really cool story in an equally cool world, one that's properly fleshed out with all kinds of lore that just keeps feeding into itself. It's really neat to see cause-and-effect in this kind of manner.

Even still, sci-fi horror games as we know them can be credited to Dead Space in some way or another; that should tell you how tightly of a grip it has.

3 Eternal Darkness: Sanity's Requiem

A Cult Classic That Changed Everything

Normally, cult classics are just that: small titles that have a pretty sizable following, normally without contributing anything too much to the medium or genre it's meant for. However, we don't see that with Eternal Darkness: Sanity's Requiem. We see a small exclusive title (check) with a massive following (check), but the game itself completely revolutionized the genre.

This is for a very simple reason: Eternal Darkness implemented a sanity meter, which will influence your gameplay and how it goes depending on how full or empty the gauge is. When full, your character will hallucinate, complete with 4th wall breaks to really freak out the player behind the screen.

Ever since, the concept of a sanity meter in a horror game is one we see quite often, and yet, none of them manage to execute it as well (or as 4th-wall-breaky) as what we saw in Eternal Darkness. There were countless aspects of this game that were taken into modern titles, but none of them ever went the full nine yards like this game had.

I hope that one day, there will be a modern title that does something identical to this, and watch how quickly it would become one of the most terrifying of all time.

2 Silent Hill 2

The Pinnacle of Psychological Horror

When looking back on horror gaming as a whole, on all the drops into water that leave ripples that continue for miles, many immediately think of Silent Hill 2 and the boulder that was thrown instead — the ripple effect is still felt to this day, over 20 years later, in all kinds of entries in the horror genre. Basically, if there's a psychological horror component to the game, nine times out of 10, it's going to tie back to Silent Hill 2 in some way.

It's for good reason, too: this game is truly a horror masterpiece. Everything from the atmosphere, music/sound design, level/monster design, the storytelling, everything is top-notch, and players are still discovering new aspects about it to this day.

Whether you're playing the original or the incredibly faithful remake, you're going to be shaken to your core by the time you're done with this game, and you're not going to be able to get it out of your mind. It will remain known to you as one of the most devastating, gut-wrenching, yet breathtaking horror games you'll have the pleasure of playing.

Of course, I'm incredibly biased when talking about how good a Silent Hill game is, but this is one of those titles that goes beyond the franchise it comes from.

1 Resident Evil

The Origins, Literally

While Resident Evil wasn't the first ever horror game (that title technically can go to Alone in the Dark), it was the first survival horror game as we know them today, and it ended up not just setting the stage, but defining it. The horror genre followed Resident Evil and the franchise to a T, as if it was the blueprint itself for modern horror.

Seriously, most horror trends are set by the Resident Evil games (such as Resident Evil 4, 5, and 6 defining the Action Horror Era that countless other developers followed); and it was only when Resident Evil returned to its horror roots with Resident Evil 7 that the genre as a whole came back to how it was. Plus, if you were to ask any developer what their horror game was inspired by, nine times out of ten they're going to point to Resident Evil.

The influence that Resident Evil had on the horror genre is an understatement, especially as more and more games come out from the franchise and are directly inspired by said franchise. It's truly on a generational run that's not stopped since it started, and it's likely going to be one of those very rare gaming franchises (alongside legends like Mario and Zelda) that will continue on for decades.

And as it goes on, I can't wait to see how it continues to evolve in unique (and uniquely terrifying) ways.