Beyond the OST: The Types of Game Sound That Make Video Games Immersive
Every sound you hear in a video game was a deliberate choice. The types of game sound — music, sound effects (SFX), voice-over, and ambiance — form a layered system, each doing something specific to pull you deeper into the world.
This system goes far beyond the original soundtrack (OST) alone; from character themes and leitmotifs to environmental music, combat sounds, and menu sound effects, there’s an intention behind all of it, even when you don’t notice it. If you’ve ever put on a game OST just to listen, felt a battle theme land at the perfect moment, or found yourself sitting near a non-playable character (NPC) playing a guitar by a campfire for longer than you realized, you already know how powerful game sound can be. Here’s a look at every type of game sound and the deliberate choices behind them.
Different Types of Game Sound & Their Importance
What Is Game Sound, Actually?
The crunch of the leaves beneath your character’s feet, the muffled sounds of people talking outside a closed door, even the specific inflections of the merchant’s voice as they tell you to buzz off since you don’t have enough coin. All of it — the music, the sound effects, the dialogue — is game sound.
Game sound design serves many purposes. It immerses you in the story, guides your decisions, signals danger, rewards your actions, and tells you things the visuals alone can’t.
Picture you’re playing a horror game, and you’re running from something you can’t quite see. The music matches the tension on the screen: it’s uneasy at first, then quickening, indicating not only that the threat is there, but that it’s getting closer. The music’s escalating pace is doing as much narrative work as anything else on screen. If you were to remove that audio from the chase sequence, the whole experience falls flat. This isn’t unique to only the horror genre, either. Sound is what helps a moment land.
A Brief History of Game Music and Sound
Early game consoles had severe audio limitations. Pong (1972), had one of the first uses of sound effects in video games: a sharp, electronic “beep” that fired every time the ball made contact. Simple as it was, it proved that audio feedback didn’t just accompany the player experience; it added to it.
Then, in 1978, Space Invaders introduced the first continuous looping background sound. Its four repeating tones quickened as the game progressed, showing what sustained audio could do for tension and pacing. From there, composers on systems like the Nintendo Entertainment System (NES) created iconic, looping themes alongside the sound effects triggered by player actions. This became the established loop: you do something, and the game visually and audibly confirms it.
Modern Games: Adaptive and Dynamic Sound
As technology evolved, so did creative freedom. Specialized teams and roles emerged — composers, SFX designers, voice directors, and technical sound designers — and the scope of what sound could do in games rapidly matured. Dynamic audio, also known as adaptive audio, is sound that responds to what you do and where you are. The music changes as you enter a new town. Your footsteps sound different on stone than on snow. Combat music kicks in the second an enemy notices you. These sounds are made intentionally to make the world feel like it’s reacting to you in real time.
Chyma and the Toll of Time
In Chyma and the Toll of Time, created by Game Sound Designer Marie Kutschke of Sand Storm Studio, you’ll experience dynamic sound that changes depending on where you are, what you’re interacting with, and if you get the puzzle right or wrong.
Check out the game!The Types of Game Sound
So what are you actually hearing?
All game sounds can be labeled as either diegetic or non-diegetic. Diegetic sound is everything that exists within the game world that your character can hear: the rain and wind, footsteps, voiced conversations, that guitar riff a random NPC strums in the tavern. Non-diegetic sound is everything outside the game world that you, as the player, can hear: background music and OSTs, menu music, user interface (UI) sounds, and external narration, The Stanley Parable’s disembodied narrator.
Within those two classifications, game audio breaks down into four types — music, sound effects, voice-over, and ambiance — each pulling at different strings to immerse you deeper into the world.
Types of Sound at a Glance
| Type | What It Does | When It Matters Most |
| Music / OST | Shapes emotion and pace; supports narrative and exploration | Cinematics, exploration, combat intensity, boss phases |
| Sound Effects (SFX) | Communicates actions, timing, and impact | Platforming, combat feedback, UI responses, traversal |
| Voice Over | Delivers story, character, and mission-critical info | Cutscenes, mission updates, character/NPC barks, lore delivery |
| Ambiance | Builds place, time, and mood without direct prompts | Open worlds, stealth, hubs, downtime moments |
| Implementation | Connects sounds and music to game logic and states | All gameplay, dynamic transitions, platform consistency |
Music/OSTs
Video game music (VGM), also known as an OST or background music (BGM), is music composed for a specific game. Some of these tracks carry a recurring theme or motif unique to that game, setting the tone before you’ve even made your first move.
Think about the last time you launched a game and were met with the menu music — Halo, Baldur’s Gate 3, Skyrim, Persona 5, Clair Obscur: Expedition 33— each one has a distinct feel, and each is instantly recognizable to anyone familiar with them. Before you’ve made a single choice or moved your character, the music has already hinted at the kind of story you’re in for.
Examples of common types of OSTs include:
- Menu/theme OSTs – music themes related to the game as a whole
- Character themes/OSTs – music related to characters
- Boss and combat music – songs that match the intensity of fight sequences
- Location-specific music – songs that play only in specific areas
- Credits music – music that plays during the credit sequence of a game
The Storytelling Power of Game Music
Some OSTs go beyond setting the tone and also support the narrative work. A lot of that happens through recurring musical phrases called motifs and leitmotifs. A motif is a short phrase that shows up throughout the score, shifting in tone and feel as the story moves forward. A leitmotif goes one step further, attaching that phrase to something specific — often a character, a place, or an idea. Done well, a leitmotif can tell you a character is nearby before they appear on screen, track how they’ve changed, or hint at something you don’t know yet.
Baldur’s Gate 3 showcases a motif through its central theme, “Down By the River,” written by Borislav Slavov. This short, descending melody you first hear in the main menu is sprinkled across combat, exploration, character conversations, and cutscenes throughout the game. It appears in varied forms and does entirely different emotional work each time it reappears.
Undertale, created by sole developer Toby Fox, leans hard into character-specific leitmotifs. Individual character themes are woven so deeply into the score that players on a second playthrough catch things they completely missed the first time — including the title track itself, which is built from two character themes layered together, quietly telling you something about their relationship long before the story does.
Sound Effects (SFX)
Sound effects are sounds triggered by player interaction, both within the game world and across menus and UI. Unlike music, sound effects are an immediate response to something you just did or affected. Think back to Pong: the “beep” confirming the ball made contact is a sound effect. It’s telling you something happened.
Sound effects help make the world feel more realistic as you navigate and interact with it. The crunch of leaves underfoot, the whoosh of a blade, the satisfying thud of a landing — each of those sounds confirms that your actions have weight. It would feel wrong to hear nothing when a wall crumbles or a spell connects, and that’s exactly why sound effects matter. The small stuff sells the big picture.
It goes beyond gameplay, too. Clicking a menu button, navigating a UI, or selecting an item from your inventory — without audio confirmation, you can’t always tell if the action registered. Sound effects make the entire experience feel responsive, not just the moments in the world itself.
Common types of SFX include:
- Footsteps and movement sounds
- Weapon and combat sounds
- Environment interaction – doors opening, chests unlocking
- UI and menu sounds
- Magic and ability sounds
- Quest notifications/gameplay queues
Did you know?
The Legend of Zelda: Breath of the Wild is a great example of the depth sound effects can provide, featuring over 10,000 distinct sounds, from weapon material sounds to footsteps that change depending on terrain and how much weight you’re carrying.
Voice-Over/Dialogue
Voice-over and dialogue give personality and life to the characters and worlds you interact with. The right voice, tone, and delivery are as much a part of character design as visual appearance.
Voice actors bring a unique flair to characters, but the performance doesn’t work alone. It’s reinforcing the writing, the animation, the music, and everything else that makes a character feel real. In narrative-driven games, especially, all of that working together is what makes you care about a character and what happens to them. In a game built around its story, that emotional investment is the whole point.
Popular examples of voice-over and dialogue in games include:
- Announcers – real-time audio updates that keep players informed during gameplay (“The enemies are attacking A”, or “My ultimate is ready!”)
- Character actors – spoken conversations, cutscene dialogue, and internal monologue
- Narrators – on or off-screen storytelling voices (“Stanley walked through the red door.”)
- Efforts and grunts – non-verbal sounds of impact and exertion
- Ambient NPC dialogue – background chatter in towns and crowds
- Enemy Barks – short lines of enemies calling out to each other or reacting to the player (“Who goes there?” “Must have been the wind.”)
Ambiance
Ambiance is everything in the background that doesn’t necessarily relate to the main story or character you’re playing as, but adds to the worldbuilding and immersion of the game. Professor of Sound Design at Champlain College, John Levee, explains it best. “Imagine you’re sitting on a porch outside, and there’s some vague wind and leaves rustling and a tractor in the distance on a farm and a couple of cows way back there. None of those sounds correspond to an event that’s occurring in the gameplay… but they’re background sounds that make the world feel alive.”
Even if these sounds don’t affect the gameplay or how you interact with elements in the game, they add to the overall experience and realism.
Common examples of ambiance in games include:
- Ambient music – though different from ambiance as a whole, this is something that can be used to set the tone of a specific location, such as an eerie graveyard
- Environmental sounds – wind, rain, water, wildlife
- Character and creature movement – footsteps, murmured conversations
The Hidden Type of Game Sound Design — Implementation
Great audio in video games goes further than just creating them — it also rests heavily on triggering the right sound, at the right moment, for the right reason. Picture opening the chest at the end of a dungeon in The Legend of Zelda: Ocarina of Time and hearing that iconic “da da da daaaaahhhhh!” play as you hold up your reward. That moment wouldn’t be possible without a technical sound designer who told the game exactly when to play that sound, how long to hold it, and when to stop.
Some technical sound designers work directly in code, while others use middleware, software that makes integrating sound into games easier, to streamline their process. As Professor John Levee describes it, middleware works like a set of LEGO: pre-built pieces of code you assemble rather than write from scratch, connecting the “play sound” block to the “character jumps” block until the whole system works together.
The game engine you choose — Unity or Unreal, both taught in Champlain’s Game Studio programs — determines which tools you’ll use as a sound designer. And when it all comes together, the result is a fully reactive audio experience with every sound playing at exactly the right moment.
How it All Works Together
You’ve just walked into a large open area. The ambient sounds shift around you from casual, calm to an echoed rumble in the distance. Winds pick up, and with them, so does the music, matching the uneasy intensity as the shadow of a large creature approaches. Before anything else happens, the world already feels different from that peaceful calm…then a dragon descends before you.
Every layer of sound is working together at once: the main OST tells you what to feel at what intensity as you begin your fight. The sound effects make every attack and dodge roll of your moment feel real and heavy. The voice-over acting — the dragon’s roar, your characters’ reactions and efforts behind every attack — makes the encounter feel dangerous and alive. Underneath it all, the ambiance keeps shaping the world as you move through it, and trees crash into the ground as the dragon swipes one away. These sounds, triggered by coding, bring it all together into an unforgettable battle that leaves you triumphant when the dragon’s defeated.
The Staying Power of Game Audio
Great game audio doesn’t only stay in the game. Players remember those stand-out moments — a voice line that stuck with them, a weapon sound that still feels satisfying, the ambient noise of a world they spent hours in. There’s a reason “study with me in [game]” playlists rack up millions of views on YouTube, or that people put on a game OST the way they’d put on any album. Music is often the most visible part of that, but every layer of game sound contributes to what makes an experience memorable. When it all works together, you remember more than just playing the game; you remember how it felt.
That staying power has built entire communities. Orchestras now run themed nights dedicated to game scores, performing music from beloved titles. Fan communities have sprung up around specific games to create their own arrangements, covers, and original works inspired by the soundtracks, characters, and moments that meant something to them. These events are more than just celebrations; they’re proof that game sound design moves people enough to want to create something of their own.
From the ambient sounds that make a world feel lived in, to the leitmotif that tells you a character is nearby before they appear, to the SFX that makes every action feel like it has weight — game audio is never just background. It’s a storytelling layer that responds to characters, place, and action in real time. And when it’s done well, it stays with you long after the credits roll.
Frequently Asked Questions
Do I need a musical background to study game sound design?
Not necessarily. While understanding music theory can help early on, it’s not a requirement to get started. Your path in game sound design might lead you toward composition, or it might lead you toward SFX, implementation, or voice direction. The skills you need depend on where you end up, and a good program like Champlain’s will help you figure that out.
What is the difference between a composer and a sound designer in games?
A composer works on the musical side — writing and arranging the themes, motifs, and scored music that make up a game’s OST. A sound designer handles the rest: SFX, ambiance, and sometimes character dialogue. There’s some overlap, especially at smaller studios where one person might do both — but a sound designer might compose music for a game, while a composer wouldn’t typically cross over into building SFX.
How does sound design affect gameplay?
Sound design shapes how you feel, what you notice, and how quickly you react. Clear SFX tell you whether an action landed, spatial audio helps you locate threats before you see them, and music primes you emotionally for what’s about to happen.
Study Game Sound Design at Champlain College
The people who make all of this happen started exactly where you are — curious about how it works. At Champlain College, you’ll spend your first two years trying all of it: music composing, sound design, voice-over recording, and technical sound design — figuring out where your strengths lie before honing in on what you love most.
Could you learn this on YouTube? Sure. But you can’t watch a video and come out the other side having shipped a real game with a real team, or having worked in a professional sound studio with industry-standard tools. That hands-on, collaborative experience, guided by faculty with real industry backgrounds, is what sets Champlain graduates apart. The next unforgettable game moment is waiting to be designed. Why not by you?
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