diff --git a/ZeroSpace/ZeroSpace.Model/StarSystemData.cs b/ZeroSpace/ZeroSpace.Model/StarSystemData.cs
new file mode 100644
index 0000000..9ced4b5
--- /dev/null
+++ b/ZeroSpace/ZeroSpace.Model/StarSystemData.cs
@@ -0,0 +1,21 @@
+namespace ZeroSpace.Model;
+
+public enum StarSystemKind
+{
+    Side,
+    Homeworld,
+    Core
+}
+
+public sealed record StarSystemData(
+    string Id,
+    string Name,
+    StarSystemKind Kind,
+    bool HigherInfluenceYield,
+    bool HigherCreditYield,
+    bool HigherEnergyYield,
+    bool HigherChanceForItems,
+    string? OccupationBuff,
+    string? SystemMastery,
+    IReadOnlyList<string> ConnectedSystems,
+    string Body);