How to Make Game Sound Effects Without a Library
You want to make game sound effects without a library: a jump that feels springy, a coin that sounds like a reward, a hit the player can feel. Free SFX packs have thousands of sounds, but they rarely match each other or your game.
Written by AI Sound Effects Team6 min readUpdated
Sound packs are where most people start, but their sounds come from different places, so a cute jump ends up next to a gritty punch. Making your own fixes that, and each sound only has one job: telling the player that something happened.
To make game sound effects without a library, list every action the player takes and every way the game responds, then describe each sound in one sentence and generate it. Make a few versions of each, keep them short, and test them while you play, not on their own.
What Sound Effects Does a Game Need?
A game needs a sound for everything the player does and everything the game does back. A thesis at Ontario Tech University describes these as sounds meant to tell the player about a change in the game, in their character or the world around them, and found a need for that kind of feedback.
Write the list before you make anything. Play your game, or walk through it in your head, and note every moment that should make a noise.
Player actions. Jump, land, attack, pick up, open a door: anything the player makes happen. These play over and over, so make them first and spend the most time on them.
Game responses. Taking damage, defeating an enemy, a power-up, a checkpoint, a level complete. These tell the player whether things are going well, so each one needs its own clear sound.
Menus. Button clicks, going back, pausing, an error buzz. They’re short and quiet, but a menu with no sound at all feels broken.
The world. Wind, rain, dripping in a cave, a busy market: a steady background loop that tells the player where they are. One per level or area is usually enough.
A small platformer might start with eight sounds: jump, land, coin, hurt, enemy defeated, checkpoint, menu click, and one background loop.
How to Make Game Sound Effects Without a Library
The fastest way to make sounds without a library is to generate them from a description. Here’s the process for each sound on your list.
Describe the sound in one sentence.
Say what makes it, how it moves, and the style of your game: “short cartoon jump with a springy boing” instead of “jump.” A style word like cartoon, 8-bit or realistic keeps all your sounds feeling like one game.
Generate it.
Type your sentence into a sound effect generator and listen. If it’s close but not right, change one word at a time: “heavy” instead of “light,” “metal” instead of “wood.”
Keep it short.
Game sounds should be over almost as soon as they start, so the next action isn’t buried under the last one. A jump or a coin is over in well under a second. Trim any silence at the start, so the sound plays the instant the button is pressed.
Test it while you play.
Put the sound in the game and play for a few minutes. A jump that sounds great on its own can get annoying by the twentieth jump, and you only find that out by playing.
Common Game Sound Effects and How to Describe Them
Describing a sound is the hard part. Researchers at Eindhoven University of Technology noted that we appear to lack a shared, intuitive vocabulary for game sounds. Use these descriptions as a starting point, and swap the style words to fit your game.
Jump. “Short cartoon jump with a quick rising boing.” A rising sound feels like going up. Keep it light, since the player hears it constantly.
Footsteps. “Single light footstep on a wooden floor.” Make one step per sound, not a whole walk, so the game can play a step each time a foot lands.
Coin or pickup. “Bright 8-bit coin pickup, two quick rising notes.” Bright, high sounds feel like a reward, so keep pickups higher than the sounds around them.
Hit and damage. “Punchy impact with a low thud and a crunch” for hitting an enemy. For the player getting hurt, try something sharper, like “harsh buzz with a pained grunt,” so the two never mix up.
Enemy defeated. “Small cartoon enemy pop with a soft puff of air.” Keep it lighter than the player getting hurt, so losing health always sounds more serious than winning a fight.
Power-up. “Magical power-up shimmer rising over two seconds.” Make it longer and fuller than a coin, because it changes more about the game.
Level complete. “Short cheerful victory chime, three rising notes.” It’s the reward for a whole level, so let it ring out for 2 or 3 seconds.
Menu click. “Soft clean button click, very short.” Keep it quiet and neutral, so it never gets in the way of the game itself.
Background loop. “Calm forest with birds and a light breeze, steady.” Steady sounds loop well. Leave out one-off events like a dog bark, because players notice when it repeats.
How AI Sound Effects Helps with Game Sound Effects
Type a line from your list, like “short cartoon jump with a quick rising boing,” under Describe your sound on the Generate screen, and tap Generate. The sound appears under Your sound, ready to play. For a level’s background, Try an idea has starting points like Forest, Spaceship and Robot.
Set Duration to 1 second, the shortest, for jumps and pickups, and longer for a power-up or a background loop, up to 12 seconds. Lower Creativity when a sound has to match the rest of your game closely. Every sound is saved to your Library, so you can make a few versions, compare them, and use Save to Files to move the ones you keep into your game project as WAV files.
Frequently Asked Questions
How do you make 8-bit sound effects?
Add “8-bit” or “retro” to a simple description, like “retro laser shot with a falling pitch.” Keep each sound short and simple, and use the same style word for every sound in your game so they all match.
Is there a free sound effect generator for games?
Yes. AI Sound Effects is free to try on iPhone and Android with limited free credits, and Pro adds unlimited sound effects and better sound quality. You describe the sound, pick a length from 1 to 12 seconds, and get a new WAV file to save into your game project.
Can I use AI sound effects in a commercial game?
Sound effects generated in AI Sound Effects may be used for personal and commercial purposes. Other generators and sound packs set their own terms, which can differ between free and paid plans, so check them before you release a game that uses their sounds.
Sources and further reading
These links are for further reading.
- Beyond the noise: an exploration of informative sound design in video games (Ontario Tech University)
- That Sound’s Juicy! Exploring Juicy Audio Effects in Video Games (Eindhoven University of Technology)
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