diff --git a/Stars Assistant/Model/Planet.cs b/Stars Assistant/Model/Planet.cs
index 1eaeb19..34d43ec 100644
--- a/Stars Assistant/Model/Planet.cs	
+++ b/Stars Assistant/Model/Planet.cs	
@@ -5,6 +5,8 @@ namespace StarsAssistant.Model;
 
 public class Planet
 {
+    public const int MinEffectiveValue = 5;
+
     [Key]
     public required string Name { get; set; }
 
diff --git a/Stars Assistant/Model/Race.cs b/Stars Assistant/Model/Race.cs
new file mode 100644
index 0000000..4f7fabd
--- /dev/null
+++ b/Stars Assistant/Model/Race.cs	
@@ -0,0 +1,90 @@
+using System.ComponentModel.DataAnnotations;
+using System;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace StarsAssistant.Model;
+
+/// <summary>
+/// Primary Racial Trait, only PRTs with relevant rules are currently listed.
+/// </summary>
+public enum PRT {
+    Other = 0,
+    HE = 1,
+    JOAT = 2
+}
+
+public class Race
+{
+    [Key]
+    public required string Name { get; set; }
+
+    public int ColonistsPerResource { get; set; }
+
+    public int GrowthRatePercent { get; set; }
+
+    private PRT _PRT;
+    public PRT PRT { 
+        get => _PRT; 
+        set {
+            _PRT = value;
+            UpdatePopDerivedValues();
+        }
+    }
+
+    private bool _hasOBRM;
+    public bool HasOBRM { 
+        get => _hasOBRM; 
+        set {
+            _hasOBRM = value;
+            UpdatePopDerivedValues();
+        }
+    }
+
+    [NotMapped]
+    public int MaxPopOnPlanet { get; private set; } = 1_000_000;
+
+    [NotMapped]
+    public int MaxEffectivePopOnRed { get; private set; }
+
+    [NotMapped]
+    public int MaxEffectivePopOnGreen { get; private set; }
+
+    private bool _factoryCost3;
+    public bool FactoryCost3 { 
+        get => _factoryCost3; 
+        set {
+            _factoryCost3 = value;
+            FactoryGerCost = _factoryCost3 ? 3 : 4;
+        }
+    }
+
+    [NotMapped]
+    public int FactoryGerCost { get; private set; }
+
+    public int FactoryNumberPer10k { get; set; }
+
+    public int FactoryResCost { get; set; }
+
+    public int FactoryResPer10 { get; set; }
+
+    public int MineResCost { get; set; }
+
+    public int MineNumberPer10k { get; set; }
+
+    public int MineMineralsPer10 { get; set; }
+
+    private void UpdatePopDerivedValues() {
+        const int basePop = 1_000_000;
+        var prtMod = PRT switch
+        {
+            PRT.HE => 0.5,
+            PRT.JOAT => 1.2,
+            _ => 1,
+        };
+        double obrmMod = HasOBRM ? 1.1 : 1.0;
+        MaxPopOnPlanet = Convert.ToInt32(basePop * prtMod * obrmMod);
+        MaxEffectivePopOnRed = MaxPopOnPlanet * Planet.MinEffectiveValue / 100 * 3;
+        MaxEffectivePopOnGreen = MaxPopOnPlanet * 3;
+    }
+
+}
diff --git a/Stars Assistant/Model/StarsDatabase.cs b/Stars Assistant/Model/StarsDatabase.cs
index ce5729c..1894810 100644
--- a/Stars Assistant/Model/StarsDatabase.cs	
+++ b/Stars Assistant/Model/StarsDatabase.cs	
@@ -27,5 +27,10 @@ public class StarsDatabase(string DbPath) : DbContext
     /// </summary>
     public DbSet<Planet> Planets { get; set; }
 
+    /// <summary>
+    /// Lists of all defined races.
+    /// </summary>
+    public DbSet<Race> Races { get; set; }
+
     #endregion
 }
\ No newline at end of file
diff --git a/Stars Assistant/Program.cs b/Stars Assistant/Program.cs
index 6c5980a..0ca711c 100644
--- a/Stars Assistant/Program.cs	
+++ b/Stars Assistant/Program.cs	
@@ -18,7 +18,7 @@ sealed class Program
     [STAThread]
     public static void Main(string[] args) 
     {
-        // __createTestData();
+        __createTestData();
         
         BuildAvaloniaApp()
         .StartWithClassicDesktopLifetime(args);
@@ -42,6 +42,23 @@ sealed class Program
         // Note: This sample requires the database to be created before running.
         Console.WriteLine($"Database path: {db.DbPath}.");
 
+        Race r = new()
+        {
+            Name = "Atlantis",
+            ColonistsPerResource = 1000,
+            GrowthRatePercent = 19,
+            PRT = PRT.Other,
+            HasOBRM = true,
+            FactoryCost3 = false,
+            FactoryNumberPer10k = 8,
+            FactoryResCost = 8,
+            FactoryResPer10 = 15,
+            MineResCost = 3,
+            MineMineralsPer10 = 10,
+            MineNumberPer10k = 10
+        };
+        db.Add(r);
+
         var config = CsvConfiguration.FromAttributes<Planet>(CultureInfo.InvariantCulture);
         config.Delimiter = "\t";
         config.Escape = '\0';