diff --git a/Content.Client/Administration/Managers/GamePrototypeLoadManager.cs b/Content.Client/Administration/Managers/GamePrototypeLoadManager.cs
new file mode 100644
index 0000000000..15944516a2
--- /dev/null
+++ b/Content.Client/Administration/Managers/GamePrototypeLoadManager.cs
@@ -0,0 +1,39 @@
+using System;
+using Content.Shared.Administration;
+using Robust.Shared.IoC;
+using Robust.Shared.Localization;
+using Robust.Shared.Log;
+using Robust.Shared.Network;
+using Robust.Shared.Prototypes;
+
+namespace Content.Client.Administration.Managers;
+
+public class GamePrototypeLoadManager : IGamePrototypeLoadManager
+{
+    [Dependency] private readonly IClientNetManager _netManager = default!;
+    [Dependency] private readonly IPrototypeManager _prototypeManager = default!;
+    [Dependency] private readonly ILocalizationManager _localizationManager = default!;
+
+    public void Initialize()
+    {
+        _netManager.RegisterNetMessage<GamePrototypeLoadMessage>(LoadGamePrototype);
+    }
+
+    private void LoadGamePrototype(GamePrototypeLoadMessage message)
+    {
+        _prototypeManager.LoadString(message.PrototypeData);
+        _prototypeManager.Resync();
+        _localizationManager.ReloadLocalizations();
+        GamePrototypeLoaded?.Invoke();
+        Logger.InfoS("adminbus", "Loaded adminbus prototype data.");
+    }
+
+    public void SendGamePrototype(string prototype)
+    {
+        var msg = _netManager.CreateNetMessage<GamePrototypeLoadMessage>();
+        msg.PrototypeData = prototype;
+        _netManager.ClientSendMessage(msg);
+    }
+
+    public event Action? GamePrototypeLoaded;
+}
diff --git a/Content.Client/Administration/UI/Tabs/AdminbusTab/AdminbusTab.xaml b/Content.Client/Administration/UI/Tabs/AdminbusTab/AdminbusTab.xaml
index 898a4404a9..3fc51089d7 100644
--- a/Content.Client/Administration/UI/Tabs/AdminbusTab/AdminbusTab.xaml
+++ b/Content.Client/Administration/UI/Tabs/AdminbusTab/AdminbusTab.xaml
@@ -8,6 +8,7 @@
     <GridContainer Columns="3">
         <Button Name="SpawnEntitiesButton" Text="{Loc 'sandbox-window-spawn-entities-button'}" />
         <Button Name="SpawnTilesButton" Text="{Loc 'sandbox-window-spawn-tiles-button'} " />
+        <Button Name="LoadGamePrototypeButton" Text="{Loc 'load-game-prototype'}"/>
         <cc:CommandButton Command="deleteewc Singularity" Name="DeleteSingulos" Text="{Loc 'delete-singularities'}"/>
         <cc:UICommandButton Command="events" Text="{Loc 'open-station-events'}" WindowType="{x:Type abt:StationEventsWindow}" />
     </GridContainer>
diff --git a/Content.Client/Administration/UI/Tabs/AdminbusTab/AdminbusTab.xaml.cs b/Content.Client/Administration/UI/Tabs/AdminbusTab/AdminbusTab.xaml.cs
index 5ac9d16ef0..cf04b6be63 100644
--- a/Content.Client/Administration/UI/Tabs/AdminbusTab/AdminbusTab.xaml.cs
+++ b/Content.Client/Administration/UI/Tabs/AdminbusTab/AdminbusTab.xaml.cs
@@ -1,4 +1,6 @@
-using Content.Client.Administration.Managers;
+using System.IO;
+using Content.Client.Administration.Managers;
+using Content.Shared.Administration;
 using Robust.Client.AutoGenerated;
 using Robust.Client.Placement;
 using Robust.Client.ResourceManagement;
@@ -24,6 +26,23 @@ namespace Content.Client.Administration.UI.Tabs.AdminbusTab
             // TODO: This will probably need some command check at some point
             SpawnEntitiesButton.OnPressed += SpawnEntitiesButtonOnOnPressed;
             SpawnTilesButton.OnPressed += SpawnTilesButtonOnOnPressed;
+            LoadGamePrototypeButton.OnPressed += LoadGamePrototypeButtonOnOnPressed;
+            LoadGamePrototypeButton.Visible = IoCManager.Resolve<IClientAdminManager>().HasFlag(AdminFlags.Query);
+        }
+
+        private async void LoadGamePrototypeButtonOnOnPressed(BaseButton.ButtonEventArgs obj)
+        {
+            var dialogManager = IoCManager.Resolve<IFileDialogManager>();
+            var loadManager = IoCManager.Resolve<IGamePrototypeLoadManager>();
+
+            var stream = await dialogManager.OpenFile();
+            if (stream is null)
+                return;
+
+            // ew oop
+            var reader = new StreamReader(stream);
+            var proto = await reader.ReadToEndAsync();
+            loadManager.SendGamePrototype(proto);
         }
 
         private void SpawnEntitiesButtonOnOnPressed(BaseButton.ButtonEventArgs obj)
diff --git a/Content.Client/Entry/EntryPoint.cs b/Content.Client/Entry/EntryPoint.cs
index e3ae7844c5..71d719c523 100644
--- a/Content.Client/Entry/EntryPoint.cs
+++ b/Content.Client/Entry/EntryPoint.cs
@@ -25,6 +25,7 @@ using Content.Client.Stylesheets;
 using Content.Client.Viewport;
 using Content.Client.Voting;
 using Content.Shared.Actions;
+using Content.Shared.Administration;
 using Content.Shared.Alert;
 using Content.Shared.AME;
 using Content.Shared.Cargo.Components;
@@ -188,6 +189,7 @@ namespace Content.Client.Entry
             IoCManager.Resolve<AlertManager>().Initialize();
             IoCManager.Resolve<ActionManager>().Initialize();
             IoCManager.Resolve<IVoteManager>().Initialize();
+            IoCManager.Resolve<IGamePrototypeLoadManager>().Initialize();
 
             _baseClient.RunLevelChanged += (_, args) =>
             {
diff --git a/Content.Client/IoC/ClientContentIoC.cs b/Content.Client/IoC/ClientContentIoC.cs
index 821f964596..961d9dd588 100644
--- a/Content.Client/IoC/ClientContentIoC.cs
+++ b/Content.Client/IoC/ClientContentIoC.cs
@@ -1,4 +1,5 @@
-using Content.Client.Administration.Managers;
+using Content.Client.Administration;
+using Content.Client.Administration.Managers;
 using Content.Client.Changelog;
 using Content.Client.Chat.Managers;
 using Content.Client.Clickable;
@@ -17,6 +18,7 @@ using Content.Client.Stylesheets;
 using Content.Client.Viewport;
 using Content.Client.Voting;
 using Content.Shared.Actions;
+using Content.Shared.Administration;
 using Content.Shared.Alert;
 using Content.Shared.Module;
 using Robust.Shared.IoC;
@@ -47,6 +49,7 @@ namespace Content.Client.IoC
             IoCManager.Register<ChangelogManager, ChangelogManager>();
             IoCManager.Register<RulesManager, RulesManager>();
             IoCManager.Register<ViewportManager, ViewportManager>();
+            IoCManager.Register<IGamePrototypeLoadManager, GamePrototypeLoadManager>();
         }
     }
 }
diff --git a/Content.Server/Administration/GamePrototypeLoadManager.cs b/Content.Server/Administration/GamePrototypeLoadManager.cs
new file mode 100644
index 0000000000..2fff6bc72c
--- /dev/null
+++ b/Content.Server/Administration/GamePrototypeLoadManager.cs
@@ -0,0 +1,76 @@
+using System;
+using System.Collections.Generic;
+using Content.Server.Administration.Managers;
+using Content.Shared.Administration;
+using Robust.Server.Player;
+using Robust.Shared.IoC;
+using Robust.Shared.Localization;
+using Robust.Shared.Log;
+using Robust.Shared.Network;
+using Robust.Shared.Prototypes;
+
+namespace Content.Server.Administration;
+
+/// <summary>
+///     Manages sending runtime-loaded prototypes from game staff to clients.
+/// </summary>
+public class GamePrototypeLoadManager : IGamePrototypeLoadManager
+{
+    [Dependency] private readonly IServerNetManager _netManager = default!;
+    [Dependency] private readonly IAdminManager _adminManager = default!;
+    [Dependency] private readonly IPlayerManager _playerManager = default!;
+    [Dependency] private readonly IPrototypeManager _prototypeManager = default!;
+    [Dependency] private readonly ILocalizationManager _localizationManager = default!;
+
+    private readonly List<string> LoadedPrototypes = new();
+
+    public void Initialize()
+    {
+        _netManager.RegisterNetMessage<GamePrototypeLoadMessage>(ClientLoadsPrototype);
+        _netManager.Connected += NetManagerOnConnected;
+    }
+
+    public void SendGamePrototype(string prototype)
+    {
+
+    }
+
+    public event Action? GamePrototypeLoaded;
+
+    private void ClientLoadsPrototype(GamePrototypeLoadMessage message)
+    {
+        var player = _playerManager.GetSessionByChannel(message.MsgChannel);
+        if (_adminManager.IsAdmin(player) && _adminManager.HasAdminFlag(player, AdminFlags.Query))
+        {
+            LoadPrototypeData(message.PrototypeData);
+            Logger.InfoS("adminbus", $"Loaded adminbus prototype data from {player.Name}.");
+        }
+        else
+        {
+            message.MsgChannel.Disconnect("Sent prototype message without permission!");
+        }
+    }
+
+    private void LoadPrototypeData(string prototypeData)
+    {
+        LoadedPrototypes.Add(prototypeData);
+        var msg = _netManager.CreateNetMessage<GamePrototypeLoadMessage>();
+        msg.PrototypeData = prototypeData;
+        _netManager.ServerSendToAll(msg); // everyone load it up!
+        _prototypeManager.LoadString(prototypeData); // server needs it too.
+        _prototypeManager.Resync();
+        _localizationManager.ReloadLocalizations();
+        GamePrototypeLoaded?.Invoke();
+    }
+
+    private void NetManagerOnConnected(object? sender, NetChannelArgs e)
+    {
+        // Just dump all the prototypes on connect, before them missing could be an issue.
+        foreach (var prototype in LoadedPrototypes)
+        {
+            var msg = _netManager.CreateNetMessage<GamePrototypeLoadMessage>();
+            msg.PrototypeData = prototype;
+            e.Channel.SendMessage(msg);
+        }
+    }
+}
diff --git a/Content.Server/Entry/EntryPoint.cs b/Content.Server/Entry/EntryPoint.cs
index db052cd6e3..fa3bee9f45 100644
--- a/Content.Server/Entry/EntryPoint.cs
+++ b/Content.Server/Entry/EntryPoint.cs
@@ -8,15 +8,14 @@ using Content.Server.Connection;
 using Content.Server.Database;
 using Content.Server.EUI;
 using Content.Server.GameTicking;
-using Content.Server.Holiday.Interfaces;
 using Content.Server.IoC;
 using Content.Server.Maps;
 using Content.Server.NodeContainer.NodeGroups;
 using Content.Server.Preferences.Managers;
 using Content.Server.Sandbox;
-using Content.Server.Speech;
 using Content.Server.Voting.Managers;
 using Content.Shared.Actions;
+using Content.Shared.Administration;
 using Content.Shared.Alert;
 using Content.Shared.Kitchen;
 using Robust.Server.Bql;
@@ -75,6 +74,7 @@ namespace Content.Server.Entry
             IoCManager.Resolve<IServerDbManager>().Init();
             IoCManager.Resolve<IServerPreferencesManager>().Init();
             IoCManager.Resolve<INodeGroupFactory>().Initialize();
+            IoCManager.Resolve<IGamePrototypeLoadManager>().Initialize();
             _voteManager.Initialize();
         }
 
diff --git a/Content.Server/IoC/ServerContentIoC.cs b/Content.Server/IoC/ServerContentIoC.cs
index b44ea2fd57..196873a7e5 100644
--- a/Content.Server/IoC/ServerContentIoC.cs
+++ b/Content.Server/IoC/ServerContentIoC.cs
@@ -22,6 +22,7 @@ using Content.Server.Sandbox;
 using Content.Server.Speech;
 using Content.Server.Voting.Managers;
 using Content.Shared.Actions;
+using Content.Shared.Administration;
 using Content.Shared.Alert;
 using Content.Shared.Kitchen;
 using Content.Shared.Module;
@@ -55,6 +56,7 @@ namespace Content.Server.IoC
             IoCManager.Register<IPlayerLocator, PlayerLocator>();
             IoCManager.Register<IAfkManager, AfkManager>();
             IoCManager.Register<IGameMapManager, GameMapManager>();
+            IoCManager.Register<IGamePrototypeLoadManager, GamePrototypeLoadManager>();
         }
     }
 }
diff --git a/Content.Shared/Administration/GamePrototypeLoadMessage.cs b/Content.Shared/Administration/GamePrototypeLoadMessage.cs
new file mode 100644
index 0000000000..130dd21eb0
--- /dev/null
+++ b/Content.Shared/Administration/GamePrototypeLoadMessage.cs
@@ -0,0 +1,25 @@
+using System;
+using Lidgren.Network;
+using Robust.Shared.Network;
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.Administration;
+
+[NetSerializable]
+[Serializable]
+public class GamePrototypeLoadMessage : NetMessage
+{
+    public override MsgGroups MsgGroup => MsgGroups.String;
+
+    public string PrototypeData { get; set; } = string.Empty;
+
+    public override void ReadFromBuffer(NetIncomingMessage buffer)
+    {
+        PrototypeData = buffer.ReadString();
+    }
+
+    public override void WriteToBuffer(NetOutgoingMessage buffer)
+    {
+        buffer.Write(PrototypeData);
+    }
+}
diff --git a/Content.Shared/Administration/IGamePrototypeLoadManager.cs b/Content.Shared/Administration/IGamePrototypeLoadManager.cs
new file mode 100644
index 0000000000..6f36f965fa
--- /dev/null
+++ b/Content.Shared/Administration/IGamePrototypeLoadManager.cs
@@ -0,0 +1,11 @@
+using System;
+
+namespace Content.Shared.Administration;
+
+public interface IGamePrototypeLoadManager
+{
+    public void Initialize();
+    public void SendGamePrototype(string prototype);
+
+    event Action GamePrototypeLoaded;
+}
diff --git a/Content.Shared/Chemistry/Reaction/SharedChemicalReactionSystem.cs b/Content.Shared/Chemistry/Reaction/SharedChemicalReactionSystem.cs
index 659ad41a3d..f63752a346 100644
--- a/Content.Shared/Chemistry/Reaction/SharedChemicalReactionSystem.cs
+++ b/Content.Shared/Chemistry/Reaction/SharedChemicalReactionSystem.cs
@@ -1,5 +1,6 @@
 using System.Collections.Generic;
 using System.Diagnostics.CodeAnalysis;
+using Content.Shared.Administration;
 using Content.Shared.Administration.Logs;
 using Content.Shared.Chemistry.Components;
 using Content.Shared.Chemistry.Reagent;
@@ -24,6 +25,7 @@ namespace Content.Shared.Chemistry.Reaction
         [Dependency] private readonly IPrototypeManager _prototypeManager = default!;
         [Dependency] private readonly IRobustRandom _random = default!;
         [Dependency] protected readonly SharedAdminLogSystem _logSystem = default!;
+        [Dependency] private readonly IGamePrototypeLoadManager _gamePrototypeLoadManager = default!;
 
         /// <summary>
         ///     A cache of all existant chemical reactions indexed by one of their
@@ -37,6 +39,7 @@ namespace Content.Shared.Chemistry.Reaction
 
             InitializeReactionCache();
             _prototypeManager.PrototypesReloaded += OnPrototypesReloaded;
+            _gamePrototypeLoadManager.GamePrototypeLoaded += InitializeReactionCache;
         }
 
         /// <summary>
diff --git a/Resources/Locale/en-US/administration/ui/tabs/adminbus-tab/adminbus-tab.ftl b/Resources/Locale/en-US/administration/ui/tabs/adminbus-tab/adminbus-tab.ftl
index 6649284982..a8dc75e3ab 100644
--- a/Resources/Locale/en-US/administration/ui/tabs/adminbus-tab/adminbus-tab.ftl
+++ b/Resources/Locale/en-US/administration/ui/tabs/adminbus-tab/adminbus-tab.ftl
@@ -1,2 +1,3 @@
 delete-singularities = Delete Singularities
 open-station-events = Station Events
+load-game-prototype = Load Prototype