diff --git a/OpenRA.Game/FluentProvider.cs b/OpenRA.Game/FluentProvider.cs
index 88b24efdc5..a6b6941566 100644
--- a/OpenRA.Game/FluentProvider.cs
+++ b/OpenRA.Game/FluentProvider.cs
@@ -23,11 +23,11 @@ namespace OpenRA
 		static FluentBundle modFluentBundle;
 		static FluentBundle mapFluentBundle;
 
-		public static void Initialize(ModData modData, IReadOnlyFileSystem fileSystem)
+		public static void Initialize(Manifest manifest, IReadOnlyFileSystem fileSystem)
 		{
 			lock (SyncObject)
 			{
-				modFluentBundle = new FluentBundle(modData.Manifest.FluentCulture, modData.Manifest.FluentMessages, fileSystem);
+				modFluentBundle = new FluentBundle(manifest.FluentCulture, manifest.FluentMessages, fileSystem);
 				if (fileSystem is Map map && map.FluentMessageDefinitions != null)
 				{
 					var files = ImmutableArray<string>.Empty;
@@ -45,7 +45,7 @@ namespace OpenRA
 						text = builder.ToString();
 					}
 
-					mapFluentBundle = new FluentBundle(modData.Manifest.FluentCulture, files, fileSystem, text);
+					mapFluentBundle = new FluentBundle(manifest.FluentCulture, files, fileSystem, text);
 				}
 			}
 		}
diff --git a/OpenRA.Game/Game.cs b/OpenRA.Game/Game.cs
index baad236d6c..ee58439e50 100644
--- a/OpenRA.Game/Game.cs
+++ b/OpenRA.Game/Game.cs
@@ -168,6 +168,7 @@ namespace OpenRA
 		{
 			return ModData.WidgetLoader.LoadWidget(new WidgetArgs(args)
 			{
+				{ "modData", ModData },
 				{ "world", world },
 				{ "orderManager", OrderManager },
 				{ "worldRenderer", worldRenderer },
@@ -502,14 +503,14 @@ namespace OpenRA
 
 			LocalPlayerProfile = new LocalPlayerProfile(Path.Combine(Platform.SupportDir, Settings.Game.AuthProfile), ModData.GetOrCreate<PlayerDatabase>());
 
-			if (!ModData.LoadScreen.BeforeLoad())
+			if (!ModData.LoadScreen.BeforeLoad(ModData))
 				return;
 
 			ModData.InitializeLoaders(ModData.DefaultFileSystem);
 			Renderer.InitializeFonts(ModData);
 
 			using (new PerfTimer("LoadMaps"))
-				ModData.MapCache.LoadMaps();
+				ModData.MapCache.LoadMaps(ModData);
 
 			Cursor?.Dispose();
 			Cursor = new CursorManager(ModData);
diff --git a/OpenRA.Game/Map/MapCache.cs b/OpenRA.Game/Map/MapCache.cs
index 141db9d83c..95ae11d2b9 100644
--- a/OpenRA.Game/Map/MapCache.cs
+++ b/OpenRA.Game/Map/MapCache.cs
@@ -21,6 +21,7 @@ using OpenRA.Graphics;
 using OpenRA.Primitives;
 using OpenRA.Support;
 using OpenRA.Traits;
+using FS = OpenRA.FileSystem.FileSystem;
 
 namespace OpenRA
 {
@@ -31,8 +32,9 @@ namespace OpenRA
 		readonly Dictionary<IReadOnlyPackage, MapClassification> mapLocations = [];
 		public bool LoadPreviewImages = true;
 
-		readonly Cache<string, MapPreview> previews;
-		readonly ModData modData;
+		readonly Manifest manifest;
+		readonly FS modFiles;
+		Cache<string, MapPreview> previews;
 		readonly SheetBuilder sheetBuilder;
 		Thread previewLoaderThread;
 		bool previewLoaderThreadShutDown = true;
@@ -67,13 +69,11 @@ namespace OpenRA
 			return null;
 		}
 
-		public MapCache(ModData modData)
+		public MapCache(Manifest manifest, FS modFiles)
 		{
-			this.modData = modData;
-
-			var gridType = Exts.Lazy(() => modData.GetOrCreate<MapGrid>().Type);
-			previews = new Cache<string, MapPreview>(uid => new MapPreview(modData, uid, gridType.Value, this));
-			sheetBuilder = new SheetBuilder(SheetType.BGRA, modData.Manifest.RendererConstants.MapPreviewSheetSize);
+			this.manifest = manifest;
+			this.modFiles = modFiles;
+			sheetBuilder = new SheetBuilder(SheetType.BGRA, manifest.RendererConstants.MapPreviewSheetSize);
 		}
 
 		public void UpdateMaps()
@@ -82,14 +82,17 @@ namespace OpenRA
 				tracker.UpdateMaps(this);
 		}
 
-		public void LoadMaps()
+		public void LoadMaps(ModData modData)
 		{
 			// Utility mod that does not support maps
-			if (modData.Manifest.MapFolders.Count == 0)
+			if (manifest.MapFolders.Count == 0)
 				return;
 
+			var gridType = modData.GetOrCreate<MapGrid>().Type;
+			previews = new Cache<string, MapPreview>(uid => new MapPreview(modData, uid, gridType, this));
+
 			// Enumerate map directories
-			foreach (var kv in modData.Manifest.MapFolders)
+			foreach (var kv in manifest.MapFolders)
 			{
 				var name = kv.Key;
 				var classification = string.IsNullOrEmpty(kv.Value)
@@ -108,7 +111,7 @@ namespace OpenRA
 					if (resolved.StartsWith(Platform.SupportDir, StringComparison.Ordinal) && !File.Exists(resolved))
 						Directory.CreateDirectory(resolved);
 
-					package = modData.ModFiles.OpenPackage(name);
+					package = modFiles.OpenPackage(name);
 				}
 				catch
 				{
@@ -124,12 +127,9 @@ namespace OpenRA
 
 			// PERF: Load the mod YAML once outside the loop, and reuse it when resolving each maps custom YAML.
 			var modDataRules = modData.GetRulesYaml();
-			var gridType = modData.GetOrCreate<MapGrid>().Type;
 			foreach (var kv in MapLocations)
-			{
 				foreach (var map in kv.Key.Contents)
 					LoadMapInternal(map, kv.Key, kv.Value, null, gridType, modDataRules);
-			}
 
 			// We only want to track maps in runtime, not at loadtime
 			LastModifiedMap = null;
@@ -148,7 +148,7 @@ namespace OpenRA
 			{
 				using (new PerfTimer(map))
 				{
-					mapPackage = package.OpenPackage(map, modData.ModFiles);
+					mapPackage = package.OpenPackage(map, modFiles);
 					if (mapPackage != null)
 					{
 						var uid = Map.ComputeUID(mapPackage);
@@ -179,7 +179,7 @@ namespace OpenRA
 		public IEnumerable<IReadWritePackage> EnumerateMapDirPackages(MapClassification classification = MapClassification.System)
 		{
 			// Enumerate map directories
-			foreach (var kv in modData.Manifest.MapFolders)
+			foreach (var kv in manifest.MapFolders)
 			{
 				if (!Enum.TryParse(kv.Value, out MapClassification packageClassification))
 					continue;
@@ -197,7 +197,7 @@ namespace OpenRA
 				if (resolved.StartsWith(Platform.SupportDir, StringComparison.Ordinal) && (!Directory.Exists(resolved) || !File.Exists(resolved)))
 					continue;
 
-				using (var package = (IReadWritePackage)modData.ModFiles.OpenPackage(name))
+				using (var package = (IReadWritePackage)modFiles.OpenPackage(name))
 					yield return package;
 			}
 		}
@@ -217,11 +217,11 @@ namespace OpenRA
 
 			foreach (var mapDirPackage in mapDirPackages)
 				foreach (var map in mapDirPackage.Contents)
-					if (mapDirPackage.OpenPackage(map, modData.ModFiles) is IReadWritePackage mapPackage)
+					if (mapDirPackage.OpenPackage(map, modFiles) is IReadWritePackage mapPackage)
 						yield return mapPackage;
 		}
 
-		public void GenerateMap(MapGenerationArgs args)
+		public void GenerateMap(ModData modData, MapGenerationArgs args)
 		{
 			var p = previews[args.Uid];
 			if (p.Class == MapClassification.Generated)
diff --git a/OpenRA.Game/ModData.cs b/OpenRA.Game/ModData.cs
index 031117a155..17ff2fec35 100644
--- a/OpenRA.Game/ModData.cs
+++ b/OpenRA.Game/ModData.cs
@@ -35,7 +35,6 @@ namespace OpenRA
 		public readonly IPackageLoader[] PackageLoaders;
 		public readonly ISoundLoader[] SoundLoaders;
 		public readonly ISpriteLoader[] SpriteLoaders;
-		public readonly ITerrainLoader TerrainLoader;
 		public readonly ISpriteSequenceLoader SpriteSequenceLoader;
 		public readonly IVideoLoader[] VideoLoaders;
 		public readonly HotkeyManager Hotkeys;
@@ -92,41 +91,38 @@ namespace OpenRA
 				modules.Add(module);
 			}
 
-			FluentProvider.Initialize(this, DefaultFileSystem);
+			FluentProvider.Initialize(Manifest, DefaultFileSystem);
 
 			if (useLoadScreen)
 			{
 				LoadScreen = ObjectCreator.CreateObject<ILoadScreen>(Manifest.LoadScreen.Value);
-				LoadScreen.Init(this, Manifest.LoadScreen.ToDictionary(my => my.Value));
+				LoadScreen.Init(Manifest, DefaultFileSystem);
 				LoadScreen.Display();
 			}
 
-			WidgetLoader = new WidgetLoader(this);
-			MapCache = new MapCache(this);
+			WidgetLoader = new WidgetLoader(Manifest, DefaultFileSystem);
+			MapCache = new MapCache(Manifest, ModFiles);
 
 			SoundLoaders = ObjectCreator.GetLoaders<ISoundLoader>(Manifest.SoundFormats, "sound");
 			SpriteLoaders = ObjectCreator.GetLoaders<ISpriteLoader>(Manifest.SpriteFormats, "sprite");
 			VideoLoaders = ObjectCreator.GetLoaders<IVideoLoader>(Manifest.VideoFormats, "video");
 			SpriteSequenceLoader = ObjectCreator.GetLoader<ISpriteSequenceLoader>(Manifest.SpriteSequenceFormat, "sequence");
-
-			var terrainLoader = ObjectCreator.FindType(Manifest.TerrainFormat + "Loader");
-			var terrainCtor = terrainLoader?.GetConstructor([typeof(ModData)]);
-			if (terrainLoader == null || !terrainLoader.GetInterfaces().Contains(typeof(ITerrainLoader)) || terrainCtor == null)
-				throw new InvalidOperationException($"Unable to find a terrain loader for type '{Manifest.TerrainFormat}'.");
-
-			TerrainLoader = (ITerrainLoader)terrainCtor.Invoke([this]);
-
 			Hotkeys = new HotkeyManager(ModFiles, Game.Settings.Keys, Manifest);
 			Cursors = ParseCursors(Manifest, DefaultFileSystem);
 
 			defaultRules = Exts.Lazy(() => Ruleset.LoadDefaults(this));
 			defaultTerrainInfo = Exts.Lazy(() =>
 			{
-				var items = new Dictionary<string, ITerrainInfo>();
+				var terrainType = ObjectCreator.FindType(Manifest.TerrainFormat + "Loader");
+				var terrainCtor = terrainType?.GetConstructor([typeof(ModData)]);
+				if (terrainType == null || !terrainType.GetInterfaces().Contains(typeof(ITerrainLoader)) || terrainCtor == null)
+					throw new InvalidOperationException($"Unable to find a terrain loader for type '{Manifest.TerrainFormat}'.");
 
+				var items = new Dictionary<string, ITerrainInfo>();
+				var terrainLoader = (ITerrainLoader)terrainCtor.Invoke([this]);
 				foreach (var file in Manifest.TileSets)
 				{
-					var t = TerrainLoader.ParseTerrain(DefaultFileSystem, file);
+					var t = terrainLoader.ParseTerrain(DefaultFileSystem, file);
 					items.Add(t.Id, t);
 				}
 
@@ -169,7 +165,8 @@ namespace OpenRA
 			// horribly when you use ModData in unexpected ways.
 			ChromeMetrics.Initialize(this);
 			ChromeProvider.Initialize(this);
-			FluentProvider.Initialize(this, fileSystem);
+			Ui.Initialize(this);
+			FluentProvider.Initialize(Manifest, fileSystem);
 
 			Game.Sound.Initialize(SoundLoaders, fileSystem);
 		}
@@ -234,7 +231,7 @@ namespace OpenRA
 	public interface ILoadScreen : IDisposable
 	{
 		/// <summary>Initializes the loadscreen with yaml data from the LoadScreen block in mod.yaml.</summary>
-		void Init(ModData m, Dictionary<string, string> info);
+		void Init(Manifest manifest, IReadOnlyFileSystem fileSystem);
 
 		/// <summary>Called at arbitrary times during mod load to rerender the loadscreen.</summary>
 		void Display();
@@ -243,7 +240,7 @@ namespace OpenRA
 		/// Called before loading the mod assets.
 		/// Returns false if mod loading should be aborted (e.g. switching to another mod instead).
 		/// </summary>
-		bool BeforeLoad();
+		bool BeforeLoad(ModData modData);
 
 		/// <summary>Called when the engine expects to connect to a server/replay or load the shellmap.</summary>
 		void StartGame(Arguments args);
diff --git a/OpenRA.Game/Network/UnitOrders.cs b/OpenRA.Game/Network/UnitOrders.cs
index 3e3b0f7b16..a354f48b24 100644
--- a/OpenRA.Game/Network/UnitOrders.cs
+++ b/OpenRA.Game/Network/UnitOrders.cs
@@ -393,7 +393,7 @@ namespace OpenRA.Network
 				case "GenerateMap":
 				{
 					var yaml = new MiniYaml(order.OrderString, MiniYaml.FromString(order.TargetString, order.OrderString));
-					Game.ModData.MapCache.GenerateMap(FieldLoader.Load<MapGenerationArgs>(yaml));
+					Game.ModData.MapCache.GenerateMap(Game.ModData, FieldLoader.Load<MapGenerationArgs>(yaml));
 					break;
 				}
 
diff --git a/OpenRA.Game/Server/Server.cs b/OpenRA.Game/Server/Server.cs
index c2fab1cd52..4a9d607bac 100644
--- a/OpenRA.Game/Server/Server.cs
+++ b/OpenRA.Game/Server/Server.cs
@@ -1136,7 +1136,7 @@ namespace OpenRA.Server
 							var args = FieldLoader.Load<MapGenerationArgs>(yaml);
 							var preview = ModData.MapCache[args.Uid];
 							if (preview.Status != MapStatus.Available)
-								ModData.MapCache.GenerateMap(args);
+								ModData.MapCache.GenerateMap(ModData, args);
 
 							GeneratedMapData = o.TargetString;
 							DispatchServerOrdersToClients(Order.FromTargetString("GenerateMap", o.TargetString, true));
diff --git a/OpenRA.Game/Widgets/Widget.cs b/OpenRA.Game/Widgets/Widget.cs
index 7927fc1c27..580e238751 100644
--- a/OpenRA.Game/Widgets/Widget.cs
+++ b/OpenRA.Game/Widgets/Widget.cs
@@ -36,6 +36,12 @@ namespace OpenRA.Widgets
 		public static Widget MouseOverWidget;
 
 		static readonly Mediator Mediator = new();
+		static ModData modData;
+
+		public static void Initialize(ModData modData)
+		{
+			Ui.modData = modData;
+		}
 
 		public static void CloseWindow()
 		{
@@ -66,6 +72,9 @@ namespace OpenRA.Widgets
 
 		public static Widget OpenWindow(string id, WidgetArgs args)
 		{
+			if (!args.ContainsKey("modData"))
+				args = new WidgetArgs(args) { { "modData", modData } };
+
 			var window = Game.ModData.WidgetLoader.LoadWidget(args, Root, id);
 			if (WindowList.Count > 0)
 				Root.HideChild(WindowList.Peek());
@@ -88,6 +97,9 @@ namespace OpenRA.Widgets
 
 		public static Widget LoadWidget(string id, Widget parent, WidgetArgs args)
 		{
+			if (!args.ContainsKey("modData"))
+				args = new WidgetArgs(args) { { "modData", modData } };
+
 			return Game.ModData.WidgetLoader.LoadWidget(args, parent, id);
 		}
 
diff --git a/OpenRA.Game/Widgets/WidgetLoader.cs b/OpenRA.Game/Widgets/WidgetLoader.cs
index 0f90d17638..f3c04405f9 100644
--- a/OpenRA.Game/Widgets/WidgetLoader.cs
+++ b/OpenRA.Game/Widgets/WidgetLoader.cs
@@ -12,6 +12,7 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
+using OpenRA.FileSystem;
 using OpenRA.Widgets;
 
 namespace OpenRA
@@ -19,15 +20,12 @@ namespace OpenRA
 	public class WidgetLoader
 	{
 		readonly Dictionary<string, MiniYamlNode> widgets = [];
-		readonly ModData modData;
 
-		public WidgetLoader(ModData modData)
+		public WidgetLoader(Manifest manifest, IReadOnlyFileSystem fileSystem)
 		{
-			this.modData = modData;
-
 			var stringPool = new HashSet<string>(); // Reuse common strings in YAML
-			foreach (var file in modData.Manifest.ChromeLayout.Select(
-				a => MiniYaml.FromStream(modData.DefaultFileSystem.Open(a), a, stringPool: stringPool)))
+			foreach (var file in manifest.ChromeLayout.Select(
+				a => MiniYaml.FromStream(fileSystem.Open(a), a, stringPool: stringPool)))
 				foreach (var w in file)
 				{
 					var key = w.Key[(w.Key.IndexOf('@') + 1)..];
@@ -47,9 +45,6 @@ namespace OpenRA
 
 		public Widget LoadWidget(WidgetArgs args, Widget parent, MiniYamlNode node)
 		{
-			if (!args.ContainsKey("modData"))
-				args = new WidgetArgs(args) { { "modData", modData } };
-
 			var widget = NewWidget(node.Key, args);
 
 			parent?.AddChild(widget);
diff --git a/OpenRA.Mods.Cnc/CncLoadScreen.cs b/OpenRA.Mods.Cnc/CncLoadScreen.cs
index bdcdce4c83..d564a7ced2 100644
--- a/OpenRA.Mods.Cnc/CncLoadScreen.cs
+++ b/OpenRA.Mods.Cnc/CncLoadScreen.cs
@@ -9,7 +9,7 @@
  */
 #endregion
 
-using System.Collections.Generic;
+using OpenRA.FileSystem;
 using OpenRA.Graphics;
 using OpenRA.Mods.Common.LoadScreens;
 using OpenRA.Mods.Common.Widgets;
@@ -36,11 +36,11 @@ namespace OpenRA.Mods.Cnc
 
 		string message = "";
 
-		public override void Init(ModData modData, Dictionary<string, string> info)
+		public override void Init(Manifest manifest, IReadOnlyFileSystem fileSystem)
 		{
-			base.Init(modData, info);
+			base.Init(manifest, fileSystem);
 
-			versionText = modData.Manifest.Metadata.Version;
+			versionText = manifest.Metadata.Version;
 
 			message = FluentProvider.GetMessage(Loading);
 		}
diff --git a/OpenRA.Mods.Common/LoadScreens/BlankLoadScreen.cs b/OpenRA.Mods.Common/LoadScreens/BlankLoadScreen.cs
index 743be7715b..220d1cc70d 100644
--- a/OpenRA.Mods.Common/LoadScreens/BlankLoadScreen.cs
+++ b/OpenRA.Mods.Common/LoadScreens/BlankLoadScreen.cs
@@ -10,9 +10,9 @@
 #endregion
 
 using System;
-using System.Collections.Generic;
 using System.IO;
 using OpenRA.FileFormats;
+using OpenRA.FileSystem;
 using OpenRA.Mods.Common.FileSystem;
 using OpenRA.Mods.Common.Widgets.Logic;
 using OpenRA.Widgets;
@@ -22,13 +22,12 @@ namespace OpenRA.Mods.Common.LoadScreens
 	public class BlankLoadScreen : ILoadScreen
 	{
 		public LaunchArguments Launch;
-		protected ModData ModData { get; private set; }
-
+		protected IReadOnlyFileSystem fileSystem;
 		bool initialized;
 
-		public virtual void Init(ModData modData, Dictionary<string, string> info)
+		public virtual void Init(Manifest manifest, IReadOnlyFileSystem fileSystem)
 		{
-			ModData = modData;
+			this.fileSystem = fileSystem;
 		}
 
 		public virtual void Display()
@@ -108,12 +107,12 @@ namespace OpenRA.Mods.Common.LoadScreens
 			GC.SuppressFinalize(this);
 		}
 
-		public virtual bool BeforeLoad()
+		public virtual bool BeforeLoad(ModData modData)
 		{
 			var graphicSettings = Game.Settings.Graphics;
 
 			// Reset the UI scaling if the user has configured a UI scale that pushes us below the minimum allowed effective resolution
-			var minResolution = ModData.GetOrCreate<WorldViewportSizes>().MinEffectiveResolution;
+			var minResolution = modData.GetOrCreate<WorldViewportSizes>().MinEffectiveResolution;
 			var resolution = Game.Renderer.Resolution;
 			if ((resolution.Width < minResolution.Width || resolution.Height < minResolution.Height) && Game.Settings.Graphics.UIScale > 1.0f)
 			{
@@ -126,10 +125,10 @@ namespace OpenRA.Mods.Common.LoadScreens
 			if (graphicSettings.GLProfile != GLProfile.Automatic && graphicSettings.GLProfile != Game.Renderer.GLProfile)
 				graphicSettings.GLProfile = GLProfile.Automatic;
 
-			if (ModData.FileSystemLoader is not IFileSystemExternalContent content)
+			if (modData.FileSystemLoader is not IFileSystemExternalContent content)
 				return true;
 
-			return !content.InstallContentIfRequired(ModData);
+			return !content.InstallContentIfRequired(modData);
 		}
 	}
 }
diff --git a/OpenRA.Mods.Common/LoadScreens/LogoStripeLoadScreen.cs b/OpenRA.Mods.Common/LoadScreens/LogoStripeLoadScreen.cs
index ec3aa6aa35..26c35f4afe 100644
--- a/OpenRA.Mods.Common/LoadScreens/LogoStripeLoadScreen.cs
+++ b/OpenRA.Mods.Common/LoadScreens/LogoStripeLoadScreen.cs
@@ -9,8 +9,8 @@
  */
 #endregion
 
-using System.Collections.Generic;
 using System.Linq;
+using OpenRA.FileSystem;
 using OpenRA.Graphics;
 using OpenRA.Mods.Common.Widgets;
 using OpenRA.Primitives;
@@ -32,9 +32,9 @@ namespace OpenRA.Mods.Common.LoadScreens
 
 		string[] messages = [];
 
-		public override void Init(ModData modData, Dictionary<string, string> info)
+		public override void Init(Manifest manifest, IReadOnlyFileSystem fileSystem)
 		{
-			base.Init(modData, info);
+			base.Init(manifest, fileSystem);
 
 			messages = FluentProvider.GetMessage(Loading).Split(',').Select(x => x.Trim()).ToArray();
 		}
diff --git a/OpenRA.Mods.Common/LoadScreens/ModContentLoadScreen.cs b/OpenRA.Mods.Common/LoadScreens/ModContentLoadScreen.cs
index 8278d305e9..3eeaf3ceec 100644
--- a/OpenRA.Mods.Common/LoadScreens/ModContentLoadScreen.cs
+++ b/OpenRA.Mods.Common/LoadScreens/ModContentLoadScreen.cs
@@ -48,7 +48,7 @@ namespace OpenRA.Mods.Common.LoadScreens
 			Ui.LoadWidget("MODCONTENT_BACKGROUND", Ui.Root, []);
 		}
 
-		public override bool BeforeLoad()
+		public override bool BeforeLoad(ModData modData)
 		{
 			return true;
 		}
diff --git a/OpenRA.Mods.Common/LoadScreens/SheetLoadScreen.cs b/OpenRA.Mods.Common/LoadScreens/SheetLoadScreen.cs
index e80465b949..b0536acc69 100644
--- a/OpenRA.Mods.Common/LoadScreens/SheetLoadScreen.cs
+++ b/OpenRA.Mods.Common/LoadScreens/SheetLoadScreen.cs
@@ -11,6 +11,7 @@
 
 using System.Collections.Generic;
 using System.Diagnostics;
+using OpenRA.FileSystem;
 using OpenRA.Graphics;
 using OpenRA.Primitives;
 
@@ -26,10 +27,10 @@ namespace OpenRA.Mods.Common.LoadScreens
 		Sheet sheet;
 		int density;
 
-		public override void Init(ModData modData, Dictionary<string, string> info)
+		public override void Init(Manifest manifest, IReadOnlyFileSystem fileSystem)
 		{
-			base.Init(modData, info);
-			Info = info;
+			base.Init(manifest, fileSystem);
+			Info = manifest.LoadScreen.ToDictionary(my => my.Value);
 		}
 
 		public abstract void DisplayInner(Renderer r, Sheet s, int density);
@@ -70,7 +71,7 @@ namespace OpenRA.Mods.Common.LoadScreens
 					density = 2;
 				}
 
-				using (var stream = ModData.DefaultFileSystem.Open(Platform.ResolvePath(image)))
+				using (var stream = fileSystem.Open(Platform.ResolvePath(image)))
 				{
 					sheet = new Sheet(SheetType.BGRA, stream);
 					sheet.GetTexture().ScaleFilter = TextureScaleFilter.Linear;
diff --git a/OpenRA.Mods.Common/UtilityCommands/MapCommand.cs b/OpenRA.Mods.Common/UtilityCommands/MapCommand.cs
index 9c203b15a2..168cb69f3c 100644
--- a/OpenRA.Mods.Common/UtilityCommands/MapCommand.cs
+++ b/OpenRA.Mods.Common/UtilityCommands/MapCommand.cs
@@ -54,7 +54,7 @@ namespace OpenRA.Mods.Common.UtilityCommands
 			// HACK: The engine code assumes that Game.modData is set.
 			// HACK: We know that maps can only be oramap or folders, which are ReadWrite
 			var modData = Game.ModData = utility.ModData;
-			modData.MapCache.LoadMaps();
+			modData.MapCache.LoadMaps(modData);
 			foreach (var kv in modData.MapCache.MapLocations)
 			{
 				foreach (var mapFilename in kv.Key.Contents)
diff --git a/OpenRA.Server/Program.cs b/OpenRA.Server/Program.cs
index 605c84ac35..29325e7de5 100644
--- a/OpenRA.Server/Program.cs
+++ b/OpenRA.Server/Program.cs
@@ -94,7 +94,7 @@ namespace OpenRA.Server
 				// HACK: The engine code *still* assumes that Game.ModData is set
 				var modData = Game.ModData = new ModData(mods[modID], mods);
 				modData.MapCache.LoadPreviewImages = false; // PERF: Server doesn't need previews, save memory by not loading them.
-				modData.MapCache.LoadMaps();
+				modData.MapCache.LoadMaps(modData);
 
 				var endpoints = new List<IPEndPoint> { new(IPAddress.IPv6Any, settings.ListenPort), new(IPAddress.Any, settings.ListenPort) };
 				var server = new Server(endpoints, settings, modData, ServerType.Dedicated);