diff --git a/Dependencies/Foundry/README.md b/Dependencies/Foundry/README.md
index e5c123f..58dde90 100644
--- a/Dependencies/Foundry/README.md
+++ b/Dependencies/Foundry/README.md
@@ -1,4 +1,5 @@
 # Place Foundry dependencies here
 
+* `0Harmony.dll` (unstripped)
 * `Main.dll` (publicized)
 * `UnityEngine.CoreModule.dll`
diff --git a/ScienceUnlock/Main.cs b/ScienceUnlock/Main.cs
index a75ef55..d46a977 100644
--- a/ScienceUnlock/Main.cs
+++ b/ScienceUnlock/Main.cs
@@ -1,16 +1,24 @@
-using System.Reflection;
+using HarmonyLib;
 
 namespace ScienceUnlock
 {
-    internal static class Main
+    [HarmonyPatch(typeof(ItemTemplate), nameof(ItemTemplate.onLoad))]
+    internal static class ItemTemplate_OnLoad
     {
-        [OnGameAssemblyLoad]
-        public static void OnGameAssemblyLoad(Assembly assembly)
+        static void Postfix(ItemTemplate __instance, bool isCalledFromEditor)
         {
-            if (!BuildInfo.isDemo)
-                return;
+            __instance.includeInBuild = true;
+            __instance.includeInDemo = true;
+        }
+    }
 
-            BuildInfo.isDemo = false;
+    [HarmonyPatch(typeof(ResearchTemplate), nameof(ResearchTemplate.onLoad))]
+    internal static class ResearchTemplate_OnLoad
+    {
+        static void Postfix(ResearchTemplate __instance)
+        {
+            __instance.includeInBuild = true;
+            __instance.includeInDemo = true;
         }
     }
 }
diff --git a/ScienceUnlock/ScienceUnlock.csproj b/ScienceUnlock/ScienceUnlock.csproj
index 799a7eb..9e27c38 100644
--- a/ScienceUnlock/ScienceUnlock.csproj
+++ b/ScienceUnlock/ScienceUnlock.csproj
@@ -6,6 +6,9 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <Reference Include="0Harmony">
+      <HintPath>../Dependencies/Foundry/0Harmony.dll</HintPath>
+    </Reference>
     <Reference Include="Main">
       <HintPath>../Dependencies/Foundry/Main.dll</HintPath>
     </Reference>