diff --git a/Content.Client/ClientModuleTestingCallbacks.cs b/Content.Client/ClientModuleTestingCallbacks.cs
new file mode 100644
index 0000000000..8b3d85a49c
--- /dev/null
+++ b/Content.Client/ClientModuleTestingCallbacks.cs
@@ -0,0 +1,10 @@
+using System;
+using Content.Shared;
+
+namespace Content.Client
+{
+    public sealed class ClientModuleTestingCallbacks : SharedModuleTestingCallbacks
+    {
+        public Action ClientBeforeIoC { get; set; }
+    }
+}
diff --git a/Content.Client/EntryPoint.cs b/Content.Client/EntryPoint.cs
index f33b70116f..dc45979778 100644
--- a/Content.Client/EntryPoint.cs
+++ b/Content.Client/EntryPoint.cs
@@ -139,6 +139,12 @@ namespace Content.Client
             IoCManager.Register<IParallaxManager, ParallaxManager>();
             IoCManager.Register<IChatManager, ChatManager>();
             IoCManager.Register<IEscapeMenuOwner, EscapeMenuOwner>();
+            if (TestingCallbacks != null)
+            {
+                var cast = (ClientModuleTestingCallbacks) TestingCallbacks;
+                cast.ClientBeforeIoC?.Invoke();
+            }
+
             IoCManager.BuildGraph();
 
             IoCManager.Resolve<IParallaxManager>().LoadParallax();
diff --git a/Content.Client/Parallax/ParallaxManager.cs b/Content.Client/Parallax/ParallaxManager.cs
index 0c33a5b2bd..74d18d0f47 100644
--- a/Content.Client/Parallax/ParallaxManager.cs
+++ b/Content.Client/Parallax/ParallaxManager.cs
@@ -1,14 +1,13 @@
 using System;
 using System.IO;
-using System.Text;
 using System.Threading.Tasks;
 using Content.Client.Interfaces.Parallax;
-using ICSharpCode.SharpZipLib.Checksum;
 using Nett;
 using SixLabors.ImageSharp;
 using SixLabors.Primitives;
 using Robust.Client.Graphics;
 using Robust.Client.Interfaces.ResourceManagement;
+using Robust.Shared.Interfaces.Configuration;
 using Robust.Shared.Interfaces.Log;
 using Robust.Shared.IoC;
 using Robust.Shared.Log;
@@ -16,11 +15,12 @@ using Robust.Shared.Utility;
 
 namespace Content.Client.Parallax
 {
-    public class ParallaxManager : IParallaxManager
+    internal sealed class ParallaxManager : IParallaxManager, IPostInjectInit
     {
 #pragma warning disable 649
         [Dependency] private readonly IResourceCache _resourceCache;
         [Dependency] private readonly ILogManager _logManager;
+        [Dependency] private readonly IConfigurationManager _configurationManager;
 #pragma warning restore 649
 
         private static readonly ResourcePath ParallaxConfigPath = new ResourcePath("/parallax_config.toml");
@@ -34,6 +34,11 @@ namespace Content.Client.Parallax
 
         public async void LoadParallax()
         {
+            if (!_configurationManager.GetCVar<bool>("parallax.enabled"))
+            {
+                return;
+            }
+
             MemoryStream configStream = null;
             string contents;
             TomlTable table;
@@ -99,5 +104,10 @@ namespace Content.Client.Parallax
 
             OnTextureLoaded?.Invoke(ParallaxTexture);
         }
+
+        public void PostInject()
+        {
+            _configurationManager.RegisterCVar("parallax.enabled", true);
+        }
     }
 }
diff --git a/Content.IntegrationTests/ConnectTest.cs b/Content.IntegrationTests/ConnectTest.cs
new file mode 100644
index 0000000000..5a71a03339
--- /dev/null
+++ b/Content.IntegrationTests/ConnectTest.cs
@@ -0,0 +1,57 @@
+using System.Linq;
+using System.Threading.Tasks;
+using NUnit.Framework;
+using Robust.Server.Interfaces.Player;
+using Robust.Shared.Enums;
+using Robust.Shared.Interfaces.GameObjects;
+using Robust.Shared.Interfaces.Network;
+using Robust.Shared.IoC;
+using Robust.UnitTesting;
+
+namespace Content.IntegrationTests
+{
+    [TestFixture]
+    public class ConnectTest : ContentIntegrationTest
+    {
+        [Test]
+        public async Task TestConnect()
+        {
+            var client = StartClient();
+            var server = StartServer();
+
+            await Task.WhenAll(client.WaitIdleAsync(), server.WaitIdleAsync());
+
+            // Connect.
+
+            client.SetConnectTarget(server);
+
+            client.Post(() => IoCManager.Resolve<IClientNetManager>().ClientConnect(null, 0, null));
+
+            // Run some ticks for the handshake to complete and such.
+
+            for (var i = 0; i < 10; i++)
+            {
+                server.RunTicks(1);
+                await server.WaitIdleAsync();
+                client.RunTicks(1);
+                await client.WaitIdleAsync();
+            }
+
+            await Task.WhenAll(client.WaitIdleAsync(), server.WaitIdleAsync());
+
+            // Basic checks to ensure that they're connected and data got replicated.
+
+            var playerManager = server.ResolveDependency<IPlayerManager>();
+            Assert.That(playerManager.PlayerCount, Is.EqualTo(1));
+            Assert.That(playerManager.GetAllPlayers().First().Status, Is.EqualTo(SessionStatus.InGame));
+
+            var clEntityManager = client.ResolveDependency<IEntityManager>();
+            var svEntityManager = server.ResolveDependency<IEntityManager>();
+
+            var lastSvEntity = svEntityManager.GetEntities().Last();
+            var lastClEntity = clEntityManager.GetEntity(lastSvEntity.Uid);
+
+            Assert.That(lastClEntity.Transform.GridPosition, Is.EqualTo(lastSvEntity.Transform.GridPosition));
+        }
+    }
+}
diff --git a/Content.IntegrationTests/Content.IntegrationTests.csproj b/Content.IntegrationTests/Content.IntegrationTests.csproj
index 39bfabf0c3..f5bdd9eca7 100644
--- a/Content.IntegrationTests/Content.IntegrationTests.csproj
+++ b/Content.IntegrationTests/Content.IntegrationTests.csproj
@@ -7,19 +7,19 @@
     <Platforms>x86;x64</Platforms>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="NUnit" Version="3.12.0"/>
-    <PackageReference Include="NUnit3TestAdapter" Version="3.13.0"/>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.9.0"/>
+    <PackageReference Include="NUnit" Version="3.12.0" />
+    <PackageReference Include="NUnit3TestAdapter" Version="3.13.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.9.0" />
   </ItemGroup>
   <ItemGroup>
-    <ProjectReference Include="..\Content.Client\Content.Client.csproj"/>
-    <ProjectReference Include="..\Content.Server\Content.Server.csproj"/>
-    <ProjectReference Include="..\Content.Shared\Content.Shared.csproj"/>
-    <ProjectReference Include="..\Content.Tests\Content.Tests.csproj"/>
-    <ProjectReference Include="..\RobustToolbox\Robust.Client\Robust.Client.csproj"/>
-    <ProjectReference Include="..\RobustToolbox\Robust.Server\Robust.Server.csproj"/>
-    <ProjectReference Include="..\RobustToolbox\Robust.Shared.Maths\Robust.Shared.Maths.csproj"/>
-    <ProjectReference Include="..\RobustToolbox\Robust.Shared\Robust.Shared.csproj"/>
-    <ProjectReference Include="..\RobustToolbox\Robust.UnitTesting\Robust.UnitTesting.csproj"/>
+    <ProjectReference Include="..\Content.Client\Content.Client.csproj" />
+    <ProjectReference Include="..\Content.Server\Content.Server.csproj" />
+    <ProjectReference Include="..\Content.Shared\Content.Shared.csproj" />
+    <ProjectReference Include="..\Content.Tests\Content.Tests.csproj" />
+    <ProjectReference Include="..\RobustToolbox\Robust.Client\Robust.Client.csproj" />
+    <ProjectReference Include="..\RobustToolbox\Robust.Server\Robust.Server.csproj" />
+    <ProjectReference Include="..\RobustToolbox\Robust.Shared.Maths\Robust.Shared.Maths.csproj" />
+    <ProjectReference Include="..\RobustToolbox\Robust.Shared\Robust.Shared.csproj" />
+    <ProjectReference Include="..\RobustToolbox\Robust.UnitTesting\Robust.UnitTesting.csproj" />
   </ItemGroup>
 </Project>
diff --git a/Content.IntegrationTests/ContentIntegrationTest.cs b/Content.IntegrationTests/ContentIntegrationTest.cs
new file mode 100644
index 0000000000..e4ed5ee117
--- /dev/null
+++ b/Content.IntegrationTests/ContentIntegrationTest.cs
@@ -0,0 +1,27 @@
+using Content.Client;
+using Content.Client.Interfaces.Parallax;
+using Robust.Shared.ContentPack;
+using Robust.Shared.IoC;
+using Robust.UnitTesting;
+
+namespace Content.IntegrationTests
+{
+    public abstract class ContentIntegrationTest : RobustIntegrationTest
+    {
+        protected override ClientIntegrationInstance StartClient(ClientIntegrationOptions options = null)
+        {
+            options = options ?? new ClientIntegrationOptions();
+            options.BeforeStart += () =>
+            {
+                IoCManager.Resolve<IModLoader>().SetModuleBaseCallbacks(new ClientModuleTestingCallbacks
+                {
+                    ClientBeforeIoC = () =>
+                    {
+                        IoCManager.Register<IParallaxManager, DummyParallaxManager>(true);
+                    }
+                });
+            };
+            return base.StartClient(options);
+        }
+    }
+}
diff --git a/Content.IntegrationTests/DummyParallaxManager.cs b/Content.IntegrationTests/DummyParallaxManager.cs
new file mode 100644
index 0000000000..3c4275deab
--- /dev/null
+++ b/Content.IntegrationTests/DummyParallaxManager.cs
@@ -0,0 +1,25 @@
+using System;
+using Content.Client.Interfaces.Parallax;
+using Robust.Client.Graphics;
+
+namespace Content.IntegrationTests
+{
+    public sealed class DummyParallaxManager : IParallaxManager
+    {
+        public event Action<Texture> OnTextureLoaded
+        {
+            add
+            {
+            }
+            remove
+            {
+            }
+        }
+
+        public Texture ParallaxTexture => null;
+
+        public void LoadParallax()
+        {
+        }
+    }
+}
diff --git a/Content.IntegrationTests/StartTest.cs b/Content.IntegrationTests/StartTest.cs
index 2906099bfa..68de733ae8 100644
--- a/Content.IntegrationTests/StartTest.cs
+++ b/Content.IntegrationTests/StartTest.cs
@@ -6,7 +6,7 @@ using Robust.UnitTesting;
 namespace Content.IntegrationTests
 {
     [TestFixture]
-    public class StartTest : RobustIntegrationTest
+    public class StartTest : ContentIntegrationTest
     {
         /// <summary>
         ///     Test that the server starts.
@@ -15,8 +15,6 @@ namespace Content.IntegrationTests
         public async Task TestServerStart()
         {
             var server = StartServer();
-            await server.WaitIdleAsync();
-            Assert.That(server.IsAlive);
             server.RunTicks(5);
             await server.WaitIdleAsync();
             Assert.That(server.IsAlive);
@@ -25,7 +23,6 @@ namespace Content.IntegrationTests
             server.Stop();
             await server.WaitIdleAsync();
             Assert.That(!server.IsAlive);
-            Assert.That(server.UnhandledException, Is.Null);
         }
 
         /// <summary>
diff --git a/Content.Server/Content.Server.csproj b/Content.Server/Content.Server.csproj
index 25ef19f08a..bef98d239a 100644
--- a/Content.Server/Content.Server.csproj
+++ b/Content.Server/Content.Server.csproj
@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
   <Import Project="..\RobustToolbox\MSBuild\Robust.Properties.targets" />
   <PropertyGroup>
     <TargetFramework>net472</TargetFramework>
diff --git a/Content.Server/EntryPoint.cs b/Content.Server/EntryPoint.cs
index 4b8c401f2d..1b930d76fe 100644
--- a/Content.Server/EntryPoint.cs
+++ b/Content.Server/EntryPoint.cs
@@ -191,6 +191,11 @@ namespace Content.Server
             IoCManager.Register<IGameTicker, GameTicker>();
             IoCManager.Register<IChatManager, ChatManager>();
             IoCManager.Register<IMoMMILink, MoMMILink>();
+            if (TestingCallbacks != null)
+            {
+                var cast = (ServerModuleTestingCallbacks) TestingCallbacks;
+                cast.ServerBeforeIoC?.Invoke();
+            }
             IoCManager.BuildGraph();
 
             _gameTicker = IoCManager.Resolve<IGameTicker>();
diff --git a/Content.Server/ServerModuleTestingCallbacks.cs b/Content.Server/ServerModuleTestingCallbacks.cs
new file mode 100644
index 0000000000..4777389700
--- /dev/null
+++ b/Content.Server/ServerModuleTestingCallbacks.cs
@@ -0,0 +1,10 @@
+using System;
+using Content.Shared;
+
+namespace Content.Server
+{
+    public sealed class ServerModuleTestingCallbacks : SharedModuleTestingCallbacks
+    {
+        public Action ServerBeforeIoC { get; set; }
+    }
+}
diff --git a/Content.Shared/SharedModuleTestingCallbacks.cs b/Content.Shared/SharedModuleTestingCallbacks.cs
new file mode 100644
index 0000000000..d47b65544c
--- /dev/null
+++ b/Content.Shared/SharedModuleTestingCallbacks.cs
@@ -0,0 +1,10 @@
+using System;
+using Robust.Shared.ContentPack;
+
+namespace Content.Shared
+{
+    public abstract class SharedModuleTestingCallbacks : ModuleTestingCallbacks
+    {
+        public Action SharedBeforeIoC { get; set; }
+    }
+}