diff --git a/crates/content/src/lib.rs b/crates/content/src/lib.rs
index c2bb64e..81de53a 100644
--- a/crates/content/src/lib.rs
+++ b/crates/content/src/lib.rs
@@ -113,6 +113,8 @@ pub struct Content {
 
 	/// Textures
 	pub textures: Vec<part::texture::Texture>,
+	/// Map strings to texture names.
+	/// This is only necessary because we need to hard-code a few texture names for UI elements.
 	texture_index: HashMap<String, handle::TextureHandle>,
 	/// The texture to use for starfield stars
 	starfield_handle: Option<handle::TextureHandle>,
@@ -127,7 +129,7 @@ pub struct Content {
 	ships: Vec<part::ship::Ship>,
 
 	/// Star systems
-	pub systems: Vec<part::system::System>,
+	systems: Vec<part::system::System>,
 
 	/// Factions
 	factions: Vec<part::faction::Faction>,
diff --git a/crates/gameobject/src/lib.rs b/crates/gameobject/src/lib.rs
index 9f8984c..17a5192 100644
--- a/crates/gameobject/src/lib.rs
+++ b/crates/gameobject/src/lib.rs
@@ -7,7 +7,11 @@
 mod outfits;
 mod projectile;
 mod ship;
+mod system;
+mod systemobject;
 
 pub use outfits::{OutfitSet, OutfitStatSum, ShipGun};
 pub use projectile::Projectile;
 pub use ship::Ship;
+pub use system::System;
+pub use systemobject::SystemObject;
diff --git a/src/game/system.rs b/crates/gameobject/src/system.rs
similarity index 66%
rename from src/game/system.rs
rename to crates/gameobject/src/system.rs
index 2f6f12e..7484289 100644
--- a/src/game/system.rs
+++ b/crates/gameobject/src/system.rs
@@ -1,5 +1,5 @@
-use super::SystemObject;
-use crate::content;
+use crate::SystemObject;
+use galactica_content as content;
 use galactica_render::ObjectSprite;
 
 pub struct System {
@@ -8,13 +8,14 @@ pub struct System {
 }
 
 impl System {
-	pub fn new(ct: &content::System) -> Self {
+	pub fn new(ct: &content::Content, handle: content::SystemHandle) -> Self {
+		let sys = ct.get_system(handle);
 		let mut s = System {
-			name: ct.name.clone(),
+			name: sys.name.clone(),
 			bodies: Vec::new(),
 		};
 
-		for o in &ct.objects {
+		for o in &sys.objects {
 			s.bodies.push(SystemObject {
 				pos: o.position,
 				sprite_texture: o.sprite_texture,
diff --git a/src/game/systemobject.rs b/crates/gameobject/src/systemobject.rs
similarity index 92%
rename from src/game/systemobject.rs
rename to crates/gameobject/src/systemobject.rs
index 626eb6c..bc12a6c 100644
--- a/src/game/systemobject.rs
+++ b/crates/gameobject/src/systemobject.rs
@@ -1,6 +1,6 @@
 use cgmath::{Deg, Point3};
 
-use crate::content;
+use galactica_content as content;
 use galactica_render::ObjectSprite;
 
 pub struct SystemObject {
diff --git a/src/game/game.rs b/src/game/game.rs
index 687e783..e7dd03f 100644
--- a/src/game/game.rs
+++ b/src/game/game.rs
@@ -1,8 +1,9 @@
 use cgmath::{Deg, InnerSpace, Point2};
+use content::SystemHandle;
 use std::time::Instant;
 use winit::event::{ElementState, MouseButton, MouseScrollDelta, TouchPhase, VirtualKeyCode};
 
-use super::{camera::Camera, system::System};
+use super::camera::Camera;
 use crate::{content, inputstatus::InputStatus};
 use galactica_constants;
 use galactica_gameobject as object;
@@ -70,7 +71,7 @@ pub struct Game {
 	pub input: InputStatus,
 	pub last_update: Instant,
 	pub player: ShipPhysicsHandle,
-	pub system: System,
+	pub system: object::System,
 	pub camera: Camera,
 	paused: bool,
 	pub time_scale: f32,
@@ -142,7 +143,7 @@ impl Game {
 				pos: (0.0, 0.0).into(),
 				zoom: 500.0,
 			},
-			system: System::new(&ct.systems[0]),
+			system: object::System::new(&ct, SystemHandle { index: 0 }),
 
 			paused: false,
 			time_scale: 1.0,
diff --git a/src/game/mod.rs b/src/game/mod.rs
index ab544ad..b1e95b2 100644
--- a/src/game/mod.rs
+++ b/src/game/mod.rs
@@ -1,9 +1,6 @@
-//! This module contains high-level game control logic.
+//! This module is responsible for high-level game control logic.
 
 mod camera;
 mod game;
-mod system;
-mod systemobject;
 
 pub use game::Game;
-pub use systemobject::SystemObject;