diff --git a/src/Tgstation.Server.Host/Database/Migrations/20200511012117_SLAddHeartbeat.cs b/src/Tgstation.Server.Host/Database/Migrations/20200511012117_SLAddHeartbeat.cs
index 6e4a97ffef..77fc1f8ad4 100644
--- a/src/Tgstation.Server.Host/Database/Migrations/20200511012117_SLAddHeartbeat.cs
+++ b/src/Tgstation.Server.Host/Database/Migrations/20200511012117_SLAddHeartbeat.cs
@@ -18,7 +18,7 @@ namespace Tgstation.Server.Host.Database.Migrations
 				name: "HeartbeatSeconds",
 				table: "DreamDaemonSettings",
 				nullable: false,
-				defaultValue: 0u);
+				defaultValue: 0U);
 		}
 
 		/// <inheritdoc />
@@ -27,9 +27,44 @@ namespace Tgstation.Server.Host.Database.Migrations
 			if (migrationBuilder == null)
 				throw new ArgumentNullException(nameof(migrationBuilder));
 
-			migrationBuilder.DropColumn(
-				name: "HeartbeatSeconds",
-				table: "DreamDaemonSettings");
+			migrationBuilder.RenameTable(
+				name: "DreamDaemonSettings",
+				newName: "DreamDaemonSettings_down");
+
+			migrationBuilder.CreateTable(
+				name: "DreamDaemonSettings",
+				columns: table => new
+				{
+					Id = table.Column<long>(nullable: false)
+						.Annotation("Sqlite:Autoincrement", true),
+					AllowWebClient = table.Column<bool>(nullable: false),
+					SecurityLevel = table.Column<int>(nullable: false),
+					PrimaryPort = table.Column<ushort>(nullable: false),
+					SecondaryPort = table.Column<ushort>(nullable: false),
+					StartupTimeout = table.Column<uint>(nullable: false),
+					AutoStart = table.Column<bool>(nullable: false),
+					SoftRestart = table.Column<bool>(nullable: false),
+					SoftShutdown = table.Column<bool>(nullable: false),
+					ProcessId = table.Column<int>(nullable: true),
+					AccessToken = table.Column<string>(nullable: true),
+					InstanceId = table.Column<long>(nullable: false)
+				},
+				constraints: table =>
+				{
+					table.PrimaryKey("PK_DreamDaemonSettings", x => x.Id);
+					table.ForeignKey(
+						name: "FK_DreamDaemonSettings_Instances_InstanceId",
+						column: x => x.InstanceId,
+						principalTable: "Instances",
+						principalColumn: "Id",
+						onDelete: ReferentialAction.Cascade);
+				});
+
+			migrationBuilder.Sql(
+				$"INSERT INTO DreamDaemonSettings SELECT Id,AllowWebClient,SecurityLevel,PrimaryPort,SecondaryPort,StartupTimeout,AutoStart,SoftRestart,SoftShutdown,ProcessId,AccessToken,InstanceId FROM DreamDaemonSettings_down");
+
+			migrationBuilder.DropTable(
+				name: "DreamDaemonSettings_down");
 		}
 	}
 }
diff --git a/src/Tgstation.Server.Host/Database/Migrations/20200616180742_SLTopicTimeout.cs b/src/Tgstation.Server.Host/Database/Migrations/20200616180742_SLTopicTimeout.cs
index bca299417f..fcdcdf9500 100644
--- a/src/Tgstation.Server.Host/Database/Migrations/20200616180742_SLTopicTimeout.cs
+++ b/src/Tgstation.Server.Host/Database/Migrations/20200616180742_SLTopicTimeout.cs
@@ -25,9 +25,42 @@ namespace Tgstation.Server.Host.Database.Migrations
 		{
 			if (migrationBuilder == null)
 				throw new ArgumentNullException(nameof(migrationBuilder));
-			migrationBuilder.DropColumn(
-				name: "TopicRequestTimeout",
-				table: "DreamDaemonSettings");
+
+			migrationBuilder.RenameTable(
+				name: "DreamDaemonSettings",
+				newName: "DreamDaemonSettings_down");
+
+			migrationBuilder.CreateTable(
+				name: "DreamDaemonSettings",
+				columns: table => new
+				{
+					Id = table.Column<long>(nullable: false)
+						.Annotation("Sqlite:Autoincrement", true),
+					AllowWebClient = table.Column<bool>(nullable: false),
+					SecurityLevel = table.Column<int>(nullable: false),
+					PrimaryPort = table.Column<ushort>(nullable: false),
+					SecondaryPort = table.Column<ushort>(nullable: false),
+					StartupTimeout = table.Column<uint>(nullable: false),
+					AutoStart = table.Column<bool>(nullable: false),
+					InstanceId = table.Column<long>(nullable: false),
+					HeartbeatSeconds = table.Column<uint>(nullable: false)
+				},
+				constraints: table =>
+				{
+					table.PrimaryKey("PK_DreamDaemonSettings", x => x.Id);
+					table.ForeignKey(
+						name: "FK_DreamDaemonSettings_Instances_InstanceId",
+						column: x => x.InstanceId,
+						principalTable: "Instances",
+						principalColumn: "Id",
+						onDelete: ReferentialAction.Cascade);
+				});
+
+			migrationBuilder.Sql(
+				$"INSERT INTO DreamDaemonSettings SELECT Id,AllowWebClient,SecurityLevel,PrimaryPort,SecondaryPort,StartupTimeout,AutoStart,InstanceId,HeartbeatSeconds FROM DreamDaemonSettings_down");
+
+			migrationBuilder.DropTable(
+				name: "DreamDaemonSettings_down");
 		}
 	}
 }
diff --git a/src/Tgstation.Server.Host/Database/Migrations/20200705163700_SLAllowNullDMApi.cs b/src/Tgstation.Server.Host/Database/Migrations/20200705163700_SLAllowNullDMApi.cs
index 422cdcc5c5..e001cc523f 100644
--- a/src/Tgstation.Server.Host/Database/Migrations/20200705163700_SLAllowNullDMApi.cs
+++ b/src/Tgstation.Server.Host/Database/Migrations/20200705163700_SLAllowNullDMApi.cs
@@ -131,9 +131,37 @@ namespace Tgstation.Server.Host.Database.Migrations
 				name: "CompileJobs_down",
 				newName: "CompileJobs");
 
-			migrationBuilder.DropColumn(
-				name: "RequireDMApiValidation",
-				table: "DreamMakerSettings");
+			migrationBuilder.RenameTable(
+				name: "DreamMakerSettings",
+				newName: "DreamMakerSettings_down");
+
+			migrationBuilder.CreateTable(
+				name: "DreamMakerSettings",
+				columns: table => new
+				{
+					Id = table.Column<long>(nullable: false)
+						.Annotation("Sqlite:Autoincrement", true),
+					ProjectName = table.Column<string>(maxLength: 10000, nullable: true),
+					ApiValidationPort = table.Column<ushort>(nullable: false),
+					ApiValidationSecurityLevel = table.Column<int>(nullable: false),
+					InstanceId = table.Column<long>(nullable: false)
+				},
+				constraints: table =>
+				{
+					table.PrimaryKey("PK_DreamMakerSettings", x => x.Id);
+					table.ForeignKey(
+						name: "FK_DreamMakerSettings_Instances_InstanceId",
+						column: x => x.InstanceId,
+						principalTable: "Instances",
+						principalColumn: "Id",
+						onDelete: ReferentialAction.Cascade);
+				});
+
+			migrationBuilder.Sql(
+				$"INSERT INTO DreamMakerSettings SELECT Id,ProjectName,ApiValidationPort,ApiValidationSecurityLevel,InstanceId FROM DreamMakerSettings_down");
+
+			migrationBuilder.DropTable(
+				name: "DreamMakerSettings_down");
 		}
 	}
 }
diff --git a/tests/Tgstation.Server.Tests/IntegrationTest.cs b/tests/Tgstation.Server.Tests/IntegrationTest.cs
index 3f02965eca..f2669bcfc9 100644
--- a/tests/Tgstation.Server.Tests/IntegrationTest.cs
+++ b/tests/Tgstation.Server.Tests/IntegrationTest.cs
@@ -1,3 +1,7 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 using Microsoft.VisualStudio.TestTools.UnitTesting;
 using Moq;
@@ -15,6 +19,9 @@ using System.Threading.Tasks;
 using Tgstation.Server.Api;
 using Tgstation.Server.Api.Models;
 using Tgstation.Server.Client;
+using Tgstation.Server.Host.Configuration;
+using Tgstation.Server.Host.Database;
+using Tgstation.Server.Host.Database.Migrations;
 using Tgstation.Server.Host.Extensions;
 using Tgstation.Server.Host.System;
 using Tgstation.Server.Tests.Instance;
@@ -107,6 +114,54 @@ namespace Tgstation.Server.Tests
 			} while (true);
 		}
 
+#if DEBUG
+		[TestMethod]
+		public async Task TestDownMigrations()
+		{
+			var connectionString = Environment.GetEnvironmentVariable("TGS4_TEST_CONNECTION_STRING");
+
+			if (String.IsNullOrEmpty(connectionString))
+				Assert.Inconclusive("No connection string configured in env var TGS4_TEST_CONNECTION_STRING!");
+
+			var databaseTypeString = Environment.GetEnvironmentVariable("TGS4_TEST_DATABASE_TYPE");
+			if (!Enum.TryParse<DatabaseType>(databaseTypeString, out var databaseType))
+				Assert.Inconclusive("No/invalid database type configured in env var TGS4_TEST_DATABASE_TYPE!");
+
+			string migrationName = null;
+			DbContext CreateContext()
+			{
+				switch (databaseType)
+				{
+					case DatabaseType.MySql:
+					case DatabaseType.MariaDB:
+						migrationName = nameof(MYInitialCreate);
+						return new MySqlDatabaseContext(Host.Database.Design.DesignTimeDbContextFactoryHelpers.CreateDatabaseContextOptions<MySqlDatabaseContext>(databaseType, connectionString));
+					case DatabaseType.PostgresSql:
+						migrationName = nameof(PGCreate);
+						return new PostgresSqlDatabaseContext(Host.Database.Design.DesignTimeDbContextFactoryHelpers.CreateDatabaseContextOptions<PostgresSqlDatabaseContext>(databaseType, connectionString));
+					case DatabaseType.SqlServer:
+						migrationName = nameof(MSInitialCreate);
+						return new SqlServerDatabaseContext(Host.Database.Design.DesignTimeDbContextFactoryHelpers.CreateDatabaseContextOptions<SqlServerDatabaseContext>(databaseType, connectionString));
+					case DatabaseType.Sqlite:
+						migrationName = nameof(SLRebuild);
+						return new SqliteDatabaseContext(Host.Database.Design.DesignTimeDbContextFactoryHelpers.CreateDatabaseContextOptions<SqliteDatabaseContext>(databaseType, connectionString));
+				}
+
+				return null;
+			}
+
+			Task Delete(DbContext context) => databaseType == DatabaseType.Sqlite ? Task.CompletedTask : context.Database.EnsureCreatedAsync();
+
+			using var context = CreateContext();
+			await Delete(context);
+			await context.Database.MigrateAsync(default);
+			var dbServiceProvider = ((IInfrastructure<IServiceProvider>)context.Database).Instance;
+			var migrator = dbServiceProvider.GetRequiredService<IMigrator>();
+			await migrator.MigrateAsync(migrationName, default);
+			await Delete(context);
+		}
+#endif
+
 		[TestMethod]
 		public async Task TestServer()
 		{