diff --git a/Config/DefaultGame.ini b/Config/DefaultGame.ini
index 7d1e73b..7a212c3 100644
--- a/Config/DefaultGame.ini
+++ b/Config/DefaultGame.ini
@@ -3,7 +3,7 @@ ProjectID=1C37CF214211E5FA6177D497FE103AC4
 ProjectName=Agrarian
 ProjectDisplayedTitle=NSLOCTEXT("[/Script/EngineSettings]", "AgrarianProjectDisplayedTitle", "Agrarian")
 ProjectDebugTitleInfo=NSLOCTEXT("[/Script/EngineSettings]", "AgrarianProjectDebugTitle", "Agrarian - Development Build")
-ProjectVersion=0.1.H-investor.20260517
+ProjectVersion=0.1.I-investor.20260518
 Description=Persistent generational civilization survival prototype.
 CompanyName=Agrarian Studio
 CompanyDistinguishedName=Agrarian Studio
diff --git a/Docs/Investor/Agrarian-Investor-Roadmap-2026-05-18.html b/Docs/Investor/Agrarian-Investor-Roadmap-2026-05-18.html
index ba15b1a..8f3b8c8 100644
--- a/Docs/Investor/Agrarian-Investor-Roadmap-2026-05-18.html
+++ b/Docs/Investor/Agrarian-Investor-Roadmap-2026-05-18.html
@@ -27,7 +27,7 @@
   <div class="wrap">
     <div class="header">
       <h1>Agrarian Investor Roadmap Update</h1>
-      <p>May 18, 2026 - Windows investor demo v0.1.H baseline, roadmap current through commit 0706496.</p>
+      <p>May 18, 2026 - Windows investor demo v0.1.I baseline, roadmap current through shelter MVP completion.</p>
     </div>
 
     <div class="section">
@@ -41,7 +41,7 @@
       <div class="grid">
         <div class="tile"><strong>Startup Presentation</strong>Cinematic startup credits now play during the demo startup flow.</div>
         <div class="tile"><strong>Fire System</strong>Campfires support fuel, extinguishing, smoke placeholder, persistence, and weather interaction.</div>
-        <div class="tile"><strong>Investor Build</strong>Windows investor demo package was rebuilt successfully for v0.1.H.</div>
+        <div class="tile"><strong>Investor Build</strong>Windows investor demo package was rebuilt successfully for v0.1.I.</div>
         <div class="tile"><strong>Roadmap Direction</strong>Realism, scalable graphics tiers, and fire-spread gameplay are now explicitly tracked.</div>
       </div>
     </div>
@@ -59,7 +59,7 @@
       </ul>
       <h3>Next gameplay roadmap areas</h3>
       <ul>
-        <li><span class="status">0.1.I</span> Shelter building.</li>
+        <li><span class="status">0.1.I</span> Shelter building completed: kit-based primitive shelter placement, ghost preview, wall/roof inputs, open entrance decision, and damage/deconstruction placeholder.</li>
         <li><span class="status">0.1.J</span> Injury and basic survival consequences.</li>
         <li><span class="status">0.1.K</span> Wildlife prototype expansion.</li>
         <li><span class="status">0.1.L</span> Basic multiplayer hardening.</li>
@@ -107,8 +107,8 @@
     <div class="section">
       <h2>Build Reference</h2>
       <ul>
-        <li>Latest roadmap commit: <strong>0706496</strong> - Update roadmap for realistic visuals and fire spread.</li>
-        <li>Latest packaged investor demo baseline: <strong>Investor Demo v0.1.H - Build 2026.05.17</strong>.</li>
+        <li>Latest roadmap baseline: realistic visuals, optional ray tracing, fire spread follow-up, and shelter MVP are tracked.</li>
+        <li>Latest packaged investor demo baseline: <strong>Investor Demo v0.1.I - Build 2026.05.18</strong>.</li>
         <li>Demo package path on the build share: <strong>Builds/WindowsDevelopment</strong>.</li>
       </ul>
       <p class="small">Prepared for investor-facing review. This is a roadmap and status summary, not a final art-quality claim.</p>
diff --git a/Scripts/InstallWindowsDemoLaunchers.bat b/Scripts/InstallWindowsDemoLaunchers.bat
index 3d43670..40781ba 100644
--- a/Scripts/InstallWindowsDemoLaunchers.bat
+++ b/Scripts/InstallWindowsDemoLaunchers.bat
@@ -19,7 +19,7 @@ set "DX12_LAUNCHER=%PACKAGE_DIR%\Start Agrarian Demo - DX12.cmd"
 set "DX11_LAUNCHER=%PACKAGE_DIR%\Start Agrarian Demo - Compatibility DX11.cmd"
 set "PREREQ_LAUNCHER=%PACKAGE_DIR%\Install Prerequisites.cmd"
 set "README_FILE=%PACKAGE_DIR%\README-Investor-Demo.txt"
-set "DEMO_VERSION=Investor Demo v0.1.H - Build 2026.05.17"
+set "DEMO_VERSION=Investor Demo v0.1.I - Build 2026.05.18"
 
 > "%DEFAULT_LAUNCHER%" echo @echo off
 >> "%DEFAULT_LAUNCHER%" echo cd /d "%%~dp0"
diff --git a/Scripts/verify_startup_credits_sequence.py b/Scripts/verify_startup_credits_sequence.py
index 76a349d..b86b2be 100644
--- a/Scripts/verify_startup_credits_sequence.py
+++ b/Scripts/verify_startup_credits_sequence.py
@@ -6,14 +6,14 @@ ROOT = Path(__file__).resolve().parents[1]
 REQUIRED = {
     ROOT / "Source" / "AgrarianGame" / "AgrarianDemoNoticeActor.h": [
         "float NoticeDurationSeconds = 24.0f;",
-        "Investor Demo v0.1.H - Build 2026.05.17",
+        "Investor Demo v0.1.I - Build 2026.05.18",
     ],
     ROOT / "Source" / "AgrarianGame" / "AgrarianDemoNoticeWidget.h": [
         "virtual void NativeConstruct() override;",
         "DrawCinematicCredits",
         "DrawCreditIllustration",
         "CreditsStartTimeSeconds",
-        "Investor Demo v0.1.H - Build 2026.05.17",
+        "Investor Demo v0.1.I - Build 2026.05.18",
     ],
     ROOT / "Source" / "AgrarianGame" / "AgrarianDemoNoticeWidget.cpp": [
         "Nathan Slaven",
@@ -31,13 +31,14 @@ REQUIRED = {
         "DrawCreditIllustration",
     ],
     ROOT / "Config" / "DefaultGame.ini": [
-        "ProjectVersion=0.1.H-investor.20260517",
+        "ProjectVersion=0.1.I-investor.20260518",
     ],
     ROOT / "Scripts" / "InstallWindowsDemoLaunchers.bat": [
-        "DEMO_VERSION=Investor Demo v0.1.H - Build 2026.05.17",
+        "DEMO_VERSION=Investor Demo v0.1.I - Build 2026.05.18",
     ],
     ROOT / "AGRARIAN_DEVELOPMENT_ROADMAP.md": [
-        "Add forest-fire risk and spread from irresponsible campfire and open-flame placement",
+        "Add unattended and poorly maintained fire risk for campfires and other open-flame sources.",
+        "Add grass and forest ignition checks from irresponsible fire placement, wind/weather, dry fuel, nearby vegetation, and burn duration.",
     ],
 }
 
diff --git a/Source/AgrarianGame/AgrarianDemoNoticeActor.h b/Source/AgrarianGame/AgrarianDemoNoticeActor.h
index b3b6c20..49cfa85 100644
--- a/Source/AgrarianGame/AgrarianDemoNoticeActor.h
+++ b/Source/AgrarianGame/AgrarianDemoNoticeActor.h
@@ -23,7 +23,7 @@ public:
 	float NoticeDurationSeconds = 24.0f;
 
 	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Agrarian|Demo")
-	FText VersionLabel = FText::FromString(TEXT("Investor Demo v0.1.H - Build 2026.05.17"));
+	FText VersionLabel = FText::FromString(TEXT("Investor Demo v0.1.I - Build 2026.05.18"));
 
 	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Agrarian|Demo")
 	FText DemoNotice = FText::FromString(TEXT("Beta prototype build - not for public distribution"));
diff --git a/Source/AgrarianGame/AgrarianDemoNoticeWidget.h b/Source/AgrarianGame/AgrarianDemoNoticeWidget.h
index b4b36ef..7af1736 100644
--- a/Source/AgrarianGame/AgrarianDemoNoticeWidget.h
+++ b/Source/AgrarianGame/AgrarianDemoNoticeWidget.h
@@ -18,7 +18,7 @@ public:
 	FText Motto = FText::FromString(TEXT("What survives after you are gone?"));
 
 	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Agrarian|Demo")
-	FText VersionLabel = FText::FromString(TEXT("Investor Demo v0.1.H - Build 2026.05.17"));
+	FText VersionLabel = FText::FromString(TEXT("Investor Demo v0.1.I - Build 2026.05.18"));
 
 	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Agrarian|Demo")
 	FText DemoNotice = FText::FromString(TEXT("Beta prototype build - not for public distribution"));