diff --git a/Pal.StandaloneClient/Pal.StandaloneClient.csproj b/Pal.StandaloneClient/Pal.StandaloneClient.csproj
new file mode 100644
index 0000000..29e52f6
--- /dev/null
+++ b/Pal.StandaloneClient/Pal.StandaloneClient.csproj
@@ -0,0 +1,27 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <OutputType>Exe</OutputType>
+        <TargetFramework>net7.0</TargetFramework>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+    </PropertyGroup>
+
+	<ItemGroup>
+		<PackageReference Include="Google.Protobuf" Version="3.22.1" />
+		<PackageReference Include="Grpc.Net.Client" Version="2.51.0" />
+		<PackageReference Include="Grpc.Tools" Version="2.52.0">
+			<PrivateAssets>all</PrivateAssets>
+			<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+		</PackageReference>
+	</ItemGroup>
+
+	<ItemGroup>
+	  <ProjectReference Include="..\Pal.Common\Pal.Common.csproj" />
+	</ItemGroup>
+
+	<ItemGroup>
+		<Protobuf Include="..\Pal.Common\Protos\account.proto" Link="Protos\account.proto" GrpcServices="Client" Access="Internal" />
+		<Protobuf Include="..\Pal.Common\Protos\palace.proto" Link="Protos\palace.proto" GrpcServices="Client" Access="Internal" />
+	</ItemGroup>
+</Project>
diff --git a/Pal.StandaloneClient/Program.cs b/Pal.StandaloneClient/Program.cs
new file mode 100644
index 0000000..9d5d28b
--- /dev/null
+++ b/Pal.StandaloneClient/Program.cs
@@ -0,0 +1,34 @@
+using Grpc.Core;
+using Grpc.Net.Client;
+using Palace;
+
+namespace Pal.StandaloneClient
+{
+    internal class Program
+    {
+        private const string remoteUrl = "http://localhost:5415";
+        private static readonly Guid accountId = Guid.Parse("ce7b109a-5e29-4b63-ab3e-b6f89eb5e19e"); // manually created account id
+
+        static async Task Main(string[] args)
+        {
+            GrpcChannel channel = GrpcChannel.ForAddress(remoteUrl);
+            var accountClient = new Account.AccountService.AccountServiceClient(channel);
+            var loginReply = await accountClient.LoginAsync(new Account.LoginRequest
+            {
+                AccountId = accountId.ToString()
+            });
+            if (loginReply == null || !loginReply.Success)
+                throw new Exception($"Login failed: {loginReply?.Error}");
+
+            var headers = new Metadata()
+            {
+                { "Authorization", $"Bearer {loginReply.AuthToken}" }
+            };
+            var palaceClient = new Palace.PalaceService.PalaceServiceClient(channel);
+            var markAsSeenRequest = new MarkObjectsSeenRequest { TerritoryType = 772 };
+            markAsSeenRequest.NetworkIds.Add("0c635960-0e2e-4ec6-9fb5-443d0e7a3315"); // this is an already existing entry
+            var markAsSeenReply = await palaceClient.MarkObjectsSeenAsync(markAsSeenRequest, headers: headers);
+            Console.WriteLine($"Reply = {markAsSeenReply.Success}");
+        }
+    }
+}
diff --git a/Pal.StandaloneClient/README.md b/Pal.StandaloneClient/README.md
new file mode 100644
index 0000000..2e7bfb8
--- /dev/null
+++ b/Pal.StandaloneClient/README.md
@@ -0,0 +1,6 @@
+# Palace Pal - Test Client
+
+This is a very simple prototype for a local test client, which is more helpful
+in troubleshooting some specific edge cases with the server implementation.
+
+This should eventually be refactored into a test suite.
diff --git a/Pal.sln b/Pal.sln
index c019bbb..0663ef8 100644
--- a/Pal.sln
+++ b/Pal.sln
@@ -24,6 +24,8 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "github-workflows", "github-
 		.github\workflows\upload-crowdin.yml = .github\workflows\upload-crowdin.yml
 	EndProjectSection
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Pal.StandaloneClient", "Pal.StandaloneClient\Pal.StandaloneClient.csproj", "{EDC1C408-D832-4C09-97A2-61B223A84166}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -64,6 +66,14 @@ Global
 		{D0B37096-5BC3-41B0-8D81-203CBA3932B0}.Release|Any CPU.Build.0 = Release|x64
 		{D0B37096-5BC3-41B0-8D81-203CBA3932B0}.Release|x64.ActiveCfg = Release|x64
 		{D0B37096-5BC3-41B0-8D81-203CBA3932B0}.Release|x64.Build.0 = Release|x64
+		{EDC1C408-D832-4C09-97A2-61B223A84166}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{EDC1C408-D832-4C09-97A2-61B223A84166}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{EDC1C408-D832-4C09-97A2-61B223A84166}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{EDC1C408-D832-4C09-97A2-61B223A84166}.Debug|x64.Build.0 = Debug|Any CPU
+		{EDC1C408-D832-4C09-97A2-61B223A84166}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{EDC1C408-D832-4C09-97A2-61B223A84166}.Release|Any CPU.Build.0 = Release|Any CPU
+		{EDC1C408-D832-4C09-97A2-61B223A84166}.Release|x64.ActiveCfg = Release|Any CPU
+		{EDC1C408-D832-4C09-97A2-61B223A84166}.Release|x64.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE