diff --git a/Cargo.toml b/Cargo.toml
index 3b6ee1c..22b0721 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -37,5 +37,5 @@ log = { version = "*", features = [
 	"max_level_debug",
 	"release_max_level_warn",
 ] }
-rand = { version = "0.9.1", default-features = false, features = ["std"] }
+rand = { version = "0.9.1", default-features = false, features = ["std", "thread_rng"] }
 wyrand = "0.3.2"
diff --git a/src/game/mod.rs b/src/game/mod.rs
index 370d386..cd239ce 100644
--- a/src/game/mod.rs
+++ b/src/game/mod.rs
@@ -1,4 +1,5 @@
-pub mod objects;
+mod objects;
+mod rng;
 pub mod runtime;
 pub mod seed;
 pub mod setup;
diff --git a/src/game/rng.rs b/src/game/rng.rs
new file mode 100644
index 0000000..a9c40ad
--- /dev/null
+++ b/src/game/rng.rs
@@ -0,0 +1,7 @@
+use rand::random;
+use wyrand::WyRand;
+
+/// Initialize a `WyRand` using `rand`'s thread-local rng
+pub fn thread_rng() -> WyRand {
+    WyRand::new(random())
+}
diff --git a/src/game/setup.rs b/src/game/setup.rs
index f1f0770..2551b06 100644
--- a/src/game/setup.rs
+++ b/src/game/setup.rs
@@ -9,10 +9,12 @@ use bevy::{
     prelude::*,
 };
 use bevy_rand::prelude::{GlobalEntropy, WyRand};
-use rand::Rng;
-use wyrand::WyRand as LocalRng;
+use rand::Rng as _;
 
-use super::objects::{Ball, Player, Wall};
+use super::{
+    objects::{Ball, Player, Wall},
+    rng::thread_rng,
+};
 
 const BALL_COUNT: u8 = 32;
 const BALL_SIZES: Range<f32> = 10.0..25.0;
@@ -57,7 +59,7 @@ pub fn setup_balls(
     mut meshes: ResMut<Assets<Mesh>>,
     region: Res<PlayableArea>,
 ) {
-    let mut random = LocalRng::new(Default::default());
+    let mut random = thread_rng();
     for _ in 0..BALL_COUNT {
         let circle = Circle::new(random.random_range(BALL_SIZES));
         commands.spawn((
@@ -66,12 +68,8 @@ pub fn setup_balls(
             Mesh2d(meshes.add(circle)),
             MeshMaterial2d(materials.add(Color::from(RED_400))),
             Transform::from_xyz(
-                random.random_range(
-                    (-region.0 / 2.0 + circle.radius)..(region.0 / 2.0 - circle.radius),
-                ),
-                random.random_range(
-                    (-region.1 / 2.0 + circle.radius)..(region.1 / 2.0 - circle.radius),
-                ),
+                random.random::<f32>() * (region.0 - 2.0 * circle.radius) + circle.radius,
+                random.random::<f32>() * (region.1 - 2.0 * circle.radius) + circle.radius,
                 0.0,
             ),
         ));