diff --git a/Content.Server/Antag/MobReplacementRuleSystem.cs b/Content.Server/Antag/MobReplacementRuleSystem.cs
index 18837b5a7c8..dc8103497ee 100644
--- a/Content.Server/Antag/MobReplacementRuleSystem.cs
+++ b/Content.Server/Antag/MobReplacementRuleSystem.cs
@@ -1,16 +1,45 @@
+using System.Numerics;
 using Content.Server.Antag.Mimic;
-using Content.Server.GameTicking.Components;
+using Content.Server.Chat.Systems;
 using Content.Server.GameTicking.Rules;
-using Content.Server.GameTicking.Rules.Components;
+using Content.Server.GameTicking.Components;
+using Content.Server.NPC.Systems;
+using Content.Server.Station.Systems;
+using Content.Server.GameTicking;
 using Content.Shared.VendingMachines;
 using Robust.Shared.Map;
+using Robust.Shared.Prototypes;
 using Robust.Shared.Random;
+using Robust.Server.GameObjects;
+using Robust.Shared.Physics.Systems;
+using System.Linq;
+using Robust.Shared.Physics;
+using Content.Shared.Movement.Components;
+using Content.Shared.Damage;
+using Content.Server.NPC.HTN;
+using Content.Server.NPC;
+using Content.Shared.Weapons.Melee;
+using Content.Server.Advertise.EntitySystems;
+using Content.Server.Advertise.Components;
+using Content.Server.Power.Components;
+using Content.Shared.CombatMode;
 
 namespace Content.Server.Antag;
 
 public sealed class MobReplacementRuleSystem : GameRuleSystem<MobReplacementRuleComponent>
 {
     [Dependency] private readonly IRobustRandom _random = default!;
+    [Dependency] private readonly StationSystem _station = default!;
+    [Dependency] private readonly GameTicker _gameTicker = default!;
+    [Dependency] private readonly ChatSystem _chat = default!;
+    [Dependency] private readonly IPrototypeManager _prototype = default!;
+    [Dependency] private readonly IComponentFactory _componentFactory = default!;
+    [Dependency] private readonly SharedPhysicsSystem _physics = default!;
+    [Dependency] private readonly NpcFactionSystem _npcFaction = default!;
+    [Dependency] private readonly NPCSystem _npc = default!;
+    [Dependency] private readonly TransformSystem _transform = default!;
+    [Dependency] private readonly AdvertiseSystem _advertise = default!;
+
 
     protected override void Started(EntityUid uid, MobReplacementRuleComponent component, GameRuleComponent gameRule, GameRuleStartedEvent args)
     {
@@ -18,21 +47,120 @@ protected override void Started(EntityUid uid, MobReplacementRuleComponent compo
 
         var query = AllEntityQuery<VendingMachineComponent, TransformComponent>();
         var spawns = new List<(EntityUid Entity, EntityCoordinates Coordinates)>();
+        var stations = _gameTicker.GetSpawnableStations();
 
         while (query.MoveNext(out var vendingUid, out _, out var xform))
         {
-            if (!_random.Prob(component.Chance))
+            var ownerStation = _station.GetOwningStation(vendingUid);
+
+            if (ownerStation == null
+                || ownerStation != stations[0])
+                continue;
+
+            // Make sure that we aren't running this on something that is already a mimic
+            if (HasComp<CombatModeComponent>(vendingUid))
                 continue;
 
             spawns.Add((vendingUid, xform.Coordinates));
         }
 
-        foreach (var entity in spawns)
+        if (spawns == null)
+            //WTF: THE STATION DOESN'T EXIST! WE MUST BE IN A TEST! QUICK, PUT A MIMIC AT 0,0!!!
+            Spawn(component.Proto, new EntityCoordinates(uid, new Vector2(0, 0)));
+        else
         {
-            var coordinates = entity.Coordinates;
-            Del(entity.Entity);
+            // This is intentionally not clamped. If a server host wants to replace every vending machine in the entire station with a mimic, who am I to stop them?
+            var k = MathF.MaxMagnitude(component.NumberToReplace, 1);
+            while (k > 0 && spawns != null && spawns.Count > 0)
+            {
+                if (k > 1)
+                {
+                    var spawnLocation = _random.PickAndTake(spawns);
+                    BuildAMimicWorkshop(spawnLocation.Entity, component);
+                }
+                else
+                {
+                    BuildAMimicWorkshop(spawns[0].Entity, component);
+                }
 
-            Spawn(component.Proto, coordinates);
+                if (k == MathF.MaxMagnitude(component.NumberToReplace, 1)
+                    && component.DoAnnouncement)
+                    _chat.DispatchStationAnnouncement(stations[0], Loc.GetString("station-event-rampant-intelligence-announcement"), playDefaultSound: true,
+                        colorOverride: Color.Red, sender: "Central Command");
+
+                k--;
+            }
+        }
+    }
+
+    /// It's like Build a Bear, but MURDER
+    public void BuildAMimicWorkshop(EntityUid uid, MobReplacementRuleComponent component)
+    {
+        var metaData = MetaData(uid);
+        var vendorPrototype = metaData.EntityPrototype;
+        var mimicProto = _prototype.Index(component.Proto);
+
+        var vendorComponents = vendorPrototype?.Components.Keys
+            .Where(n => n != "Transform" && n != "MetaData")
+            .Select(name => (name, _componentFactory.GetRegistration(name).Type))
+            .ToList() ?? new List<(string name, Type type)>();
+
+        var mimicComponents = mimicProto?.Components.Keys
+            .Where(n => n != "Transform" && n != "MetaData")
+            .Select(name => (name, _componentFactory.GetRegistration(name).Type))
+            .ToList() ?? new List<(string name, Type type)>();
+
+        foreach (var name in mimicComponents.Except(vendorComponents))
+        {
+            var newComponent = _componentFactory.GetComponent(name.name);
+            EntityManager.AddComponent(uid, newComponent);
         }
+
+        var xform = Transform(uid);
+        if (xform.Anchored)
+            _transform.Unanchor(uid, xform);
+
+        SetupMimicNPC(uid, component);
+
+        if (TryComp<AdvertiseComponent>(uid, out var vendor)
+            && component.VendorModify)
+            SetupMimicVendor(uid, component, vendor);
+    }
+
+    /// This handles getting the entity ready to be a hostile NPC
+    private void SetupMimicNPC(EntityUid uid, MobReplacementRuleComponent component)
+    {
+        _physics.SetBodyType(uid, BodyType.KinematicController);
+        _npcFaction.AddFaction(uid, "SimpleHostile");
+
+        var melee = EnsureComp<MeleeWeaponComponent>(uid);
+        melee.Angle = 0;
+        DamageSpecifier dspec = new()
+        {
+            DamageDict = new()
+            {
+                { "Blunt", component.MimicMeleeDamage }
+            }
+        };
+        melee.Damage = dspec;
+
+        var movementSpeed = EnsureComp<MovementSpeedModifierComponent>(uid);
+        (movementSpeed.BaseSprintSpeed, movementSpeed.BaseWalkSpeed) = (component.MimicMoveSpeed, component.MimicMoveSpeed);
+
+        var htn = EnsureComp<HTNComponent>(uid);
+        htn.RootTask = new HTNCompoundTask() { Task = component.MimicAIType };
+        htn.Blackboard.SetValue(NPCBlackboard.NavSmash, component.MimicSmashGlass);
+        _npc.WakeNPC(uid, htn);
+    }
+
+    /// Handling specific interactions with vending machines
+    private void SetupMimicVendor(EntityUid uid, MobReplacementRuleComponent mimicComponent, AdvertiseComponent vendorComponent)
+    {
+        vendorComponent.MinimumWait = 5;
+        vendorComponent.MaximumWait = 15;
+        _advertise.SayAdvertisement(uid, vendorComponent);
+
+        if (TryComp<ApcPowerReceiverComponent>(uid, out var aPC))
+            aPC.NeedsPower = false;
     }
 }
diff --git a/Resources/Prototypes/Entities/Mobs/NPCs/mimic.yml b/Resources/Prototypes/Entities/Mobs/NPCs/mimic.yml
index ce2ca9e731e..c3a92d3ebcd 100644
--- a/Resources/Prototypes/Entities/Mobs/NPCs/mimic.yml
+++ b/Resources/Prototypes/Entities/Mobs/NPCs/mimic.yml
@@ -1,3 +1,4 @@
+# TODO: Pending a rewrite of Mob Replacement System, this entire list should just be moved into a ComponentRegistry on the event.
 - type: entity
   name: Mimic
   id: MobMimic
@@ -43,4 +44,3 @@
     damage:
       types:
         Blunt: 20
-  - type: PsionicInsulation