Sound effects for Godot

1. Pick the sounds for your kind of game

A sound set covers the events of one kind of game with sounds picked to fit together. The platformer set is above; the others:

• Retro game sound set — Pickup, jump, hit, power-up, laser, explosion and game over — one coherent chiptune-style kit
• Casual puzzle game sound set — Match, combo, bonus, slide, win, lose, countdown — a complete match-3 / puzzle kit
• Horror & suspense sound set — Drone, stinger, heartbeat, creak, growl, thunder, footsteps, wind — dread in one kit
• Dungeon Traps — Six isolated pressure plate, spike, gear, chain, gate and stone-door actions
• Crisp UI sound set — Dry, tight and bright — for dense productivity and developer tools

For one sound at a time, browse by what it is: 8-bit jumps, coin pickups, sword slashes, single footsteps or button clicks. Each page has several versions to compare.

2. Put a whole set in the project

From the project folder (the one with project.godot), one command writes a set into res://sounds:

npx sfxmint add --set platformer --out sounds

Each file is named after its event (jump.mp3, coin.mp3, hit.mp3…), next to a SOUNDS.md listing each sound's page and license. Use --format ogg for ambience and music, or name events instead of a set: npx sfxmint add jump coin hit --out sounds. Run it again later and it keeps what is already there. Godot imports the new files when the editor regains focus. A whole set takes a free account's API key in SFXMINT_API_KEY; without a key you get the first 5 sounds. WAV comes with the download pack ($9.90 for 30 days, one payment): lossless, with no MP3 delay at the start and clean loops. With a pack's key in SFXMINT_API_KEY, add --format wav.

Prefer to stay in the editor? The SFXMint addon for Godot 4.6+ (MIT) adds a bottom dock: search the library, listen, and import a sound into res://audio/sfxmint/. Library search and downloads are free to try with no key: 20 lookups and 5 downloads a day, and each preview counts as a download.

3. Which format for which sound

Import options live in the Import dock: select the file in the FileSystem dock, change the option, click Reimport. For a WAV, Loop Mode sets looping (Forward for a background, off for a one-shot); for an MP3 or OGG it is the Loop checkbox.

4. Play a sound on an event

Add an AudioStreamPlayer as a child of the player scene, drag jump.mp3 onto its Stream property, and call play() where the jump happens:

@onready var jump_sfx: AudioStreamPlayer = $JumpSfx

func _physics_process(delta: float) -> void:
    if Input.is_action_just_pressed("jump") and is_on_floor():
        velocity.y = JUMP_VELOCITY
        jump_sfx.play()

For many short cues from code, preload the streams and keep one player:

const SFX := {
    "coin": preload("res://sounds/coin.mp3"),
    "hit": preload("res://sounds/hit.mp3"),
    "death": preload("res://sounds/death.mp3"),
}

@onready var sfx: AudioStreamPlayer = $Sfx

func play_sfx(name: String) -> void:
    sfx.stream = SFX[name]
    sfx.pitch_scale = randf_range(0.95, 1.05)  # a little variety on repeats
    sfx.play()

• Overlapping plays: raise max_polyphony to 3 or 4 so fast coins do not cut each other off.
• UI buttons: connect each button's pressed signal to a function that plays the click; one player in an autoload serves every menu.
• Footsteps and hits that should never repeat: play several versions at random with AudioStreamRandomizer, as in sound effect variations for Godot and Unity.

5. Separate volume for effects and music

Open the Audio panel at the bottom of the editor, add two buses named SFX and Music, and set each player's Bus property to one of them. A settings slider (0 to 1) then sets a whole bus:

func set_bus_volume(bus_name: String, value: float) -> void:
    var bus := AudioServer.get_bus_index(bus_name)
    AudioServer.set_bus_volume_db(bus, linear_to_db(value))
    AudioServer.set_bus_mute(bus, value <= 0.0)

# HSlider with min 0, max 1, step 0.05:
func _on_sfx_slider_value_changed(value: float) -> void:
    set_bus_volume("SFX", value)

linear_to_db turns the slider's 0–1 into decibels, so 0.5 is about −6 dB, half the level. Muting at 0 avoids a faint sound at the bottom of the scale.

6. Sound that comes from a place

For an enemy, a door or a torch that the player walks past, use AudioStreamPlayer2D (or AudioStreamPlayer3D) as a child of that object. It pans with the object's position on screen and gets quieter with distance: max_distance sets where it goes silent, attenuation how fast it fades. Keep UI sounds and music on a plain AudioStreamPlayer, which sounds the same everywhere.

7. Loop ambience and music

Turn on looping in the Import dock (step 3), put the file on its own player with Autoplay on and its Bus set to Music or SFX. Backgrounds such as forest, rain, wind or dark horror ambience are in the library; download them as OGG.

In a web export, the browser keeps all audio silent until the first click, tap or key press. Start music after the player presses Start, not when the first scene loads, so it is heard from its beginning.

Questions