diff --git a/Content.Client/Backmen/FootPrint/FootPrintsVisualizerSystem.cs b/Content.Client/Backmen/FootPrint/FootPrintsVisualizerSystem.cs
index 03df85e0ea6..31309ccd671 100644
--- a/Content.Client/Backmen/FootPrint/FootPrintsVisualizerSystem.cs
+++ b/Content.Client/Backmen/FootPrint/FootPrintsVisualizerSystem.cs
@@ -1,6 +1,7 @@
 using Content.Shared.Backmen.FootPrint;
 using Robust.Client.GameObjects;
 using Robust.Client.Graphics;
+using Robust.Shared.GameStates;
 using Robust.Shared.Random;
 using Robust.Shared.Utility;
 
@@ -17,6 +18,15 @@ public override void Initialize()
 
         SubscribeLocalEvent<FootPrintComponent, ComponentInit>(OnInitialized);
         SubscribeLocalEvent<FootPrintComponent, ComponentShutdown>(OnShutdown);
+        SubscribeLocalEvent<FootPrintComponent, ComponentHandleState>(OnHandleState);
+    }
+
+    private void OnHandleState(Entity<FootPrintComponent> ent, ref ComponentHandleState args)
+    {
+        if (args.Current is not FootPrintState state || !TryGetEntity(state.PrintOwner, out var entity))
+            return;
+
+        ent.Comp.PrintOwner = entity.Value;
     }
 
     private void OnInitialized(EntityUid uid, FootPrintComponent comp, ComponentInit args)
diff --git a/Content.Server/Backmen/FootPrint/FootPrintsSystem.cs b/Content.Server/Backmen/FootPrint/FootPrintsSystem.cs
index 62c00672a57..221c2584377 100644
--- a/Content.Server/Backmen/FootPrint/FootPrintsSystem.cs
+++ b/Content.Server/Backmen/FootPrint/FootPrintsSystem.cs
@@ -7,6 +7,7 @@
 using Content.Shared.Chemistry.Components.SolutionManager;
 using Content.Shared.Chemistry.EntitySystems;
 using Content.Shared.Gravity;
+using Robust.Shared.GameStates;
 using Robust.Shared.Map;
 using Robust.Shared.Random;
 
@@ -39,9 +40,15 @@ public override void Initialize()
 
        SubscribeLocalEvent<FootPrintsComponent, ComponentStartup>(OnStartupComponent);
        SubscribeLocalEvent<FootPrintsComponent, MoveEvent>(OnMove);
+       SubscribeLocalEvent<FootPrintComponent, ComponentGetState>(OnGetState);
    }
 
-    private void OnStartupComponent(EntityUid uid, FootPrintsComponent comp, ComponentStartup args)
+   private void OnGetState(Entity<FootPrintComponent> ent, ref ComponentGetState args)
+   {
+       args.State = new FootPrintState(TerminatingOrDeleted(ent.Comp.PrintOwner) ? NetEntity.Invalid : GetNetEntity(ent.Comp.PrintOwner));
+   }
+
+   private void OnStartupComponent(EntityUid uid, FootPrintsComponent comp, ComponentStartup args)
     {
         comp.StepSize += _random.NextFloat(-0.05f, 0.05f);
     }
@@ -52,7 +59,7 @@ private void OnMove(EntityUid uid, FootPrintsComponent comp, ref MoveEvent args)
         if (comp.PrintsColor.A <= 0f)
             return;
 
-        if (!_transformQuery.TryComp(uid, out var transform))
+        if (TerminatingOrDeleted(uid) || !_transformQuery.TryComp(uid, out var transform))
             return;
 
         if (_gravity.IsWeightless(uid, xform: transform))
diff --git a/Content.Server/Backmen/FootPrint/PuddleFootPrintsSystem.cs b/Content.Server/Backmen/FootPrint/PuddleFootPrintsSystem.cs
index c27165f024a..3f07c03725f 100644
--- a/Content.Server/Backmen/FootPrint/PuddleFootPrintsSystem.cs
+++ b/Content.Server/Backmen/FootPrint/PuddleFootPrintsSystem.cs
@@ -12,19 +12,28 @@ public sealed class PuddleFootPrintsSystem : EntitySystem
 {
     [Dependency] private readonly SharedAppearanceSystem _appearance = default!;
     [Dependency] private readonly SharedSolutionContainerSystem _solutionContainerSystem = default!;
+    private EntityQuery<AppearanceComponent> _appearanceQuery;
+    private EntityQuery<PuddleComponent> _puddleQuery;
+    private EntityQuery<FootPrintsComponent> _footPrintsQuery;
+    private EntityQuery<SolutionContainerManagerComponent> _solutionContainerManageQuery;
 
-   public override void Initialize()
+    public override void Initialize()
    {
        base.Initialize();
        SubscribeLocalEvent<PuddleFootPrintsComponent, EndCollideEvent>(OnStepTrigger);
+
+       _appearanceQuery = GetEntityQuery<AppearanceComponent>();
+       _puddleQuery = GetEntityQuery<PuddleComponent>();
+       _footPrintsQuery = GetEntityQuery<FootPrintsComponent>();
+       _solutionContainerManageQuery = GetEntityQuery<SolutionContainerManagerComponent>();
    }
 
     private void OnStepTrigger(EntityUid uid, PuddleFootPrintsComponent comp, ref EndCollideEvent args)
     {
-        if (!TryComp<AppearanceComponent>(uid, out var appearance) ||
-            !TryComp<PuddleComponent>(uid, out var puddle) ||
-            !TryComp<FootPrintsComponent>(args.OtherEntity, out var tripper) ||
-            !TryComp<SolutionContainerManagerComponent>(uid, out var solutionManager))
+        if (!_appearanceQuery.TryComp(uid, out var appearance) ||
+            !_puddleQuery.TryComp(uid, out var puddle) ||
+            !_footPrintsQuery.TryComp(args.OtherEntity, out var tripper) ||
+            !_solutionContainerManageQuery.TryComp(uid, out var solutionManager))
         {
             return;
         }
diff --git a/Content.Server/Backmen/Xeno/Components/XenoAgentComponent.cs b/Content.Server/Backmen/Xeno/Components/XenoAgentComponent.cs
new file mode 100644
index 00000000000..e5a13749579
--- /dev/null
+++ b/Content.Server/Backmen/Xeno/Components/XenoAgentComponent.cs
@@ -0,0 +1,7 @@
+namespace Content.Server.Backmen.Xeno.Components;
+
+[RegisterComponent]
+public sealed partial class XenoAgentComponent : Component
+{
+
+}
diff --git a/Content.Server/Backmen/Xeno/Roles/XenoAgentRoleComponent.cs b/Content.Server/Backmen/Xeno/Roles/XenoAgentRoleComponent.cs
new file mode 100644
index 00000000000..f00e2067084
--- /dev/null
+++ b/Content.Server/Backmen/Xeno/Roles/XenoAgentRoleComponent.cs
@@ -0,0 +1,9 @@
+using Content.Shared.Roles;
+
+namespace Content.Server.Backmen.Blob.Roles;
+
+[RegisterComponent]
+public sealed partial class XenoAgentRoleComponent : BaseMindRoleComponent
+{
+
+}
diff --git a/Content.Server/Backmen/Xeno/XenoAgentSystem.cs b/Content.Server/Backmen/Xeno/XenoAgentSystem.cs
new file mode 100644
index 00000000000..483c5d34d3c
--- /dev/null
+++ b/Content.Server/Backmen/Xeno/XenoAgentSystem.cs
@@ -0,0 +1,32 @@
+using Content.Server.Backmen.Language;
+using Content.Server.Backmen.Language.Events;
+using Content.Server.Backmen.Xeno.Components;
+using Content.Shared.Backmen.Language;
+
+namespace Content.Server.Backmen.Xeno;
+
+public sealed class XenoAgentSystem : EntitySystem
+{
+    [Dependency] private readonly LanguageSystem _language = default!;
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeLocalEvent<XenoAgentComponent, MapInitEvent>(OnInit);
+        SubscribeLocalEvent<XenoAgentComponent, DetermineEntityLanguagesEvent>(OnApplyLanguages);
+    }
+
+    [ValidatePrototypeId<LanguagePrototype>]
+    private const string XenoLanguage = "Xeno";
+
+    private void OnApplyLanguages(Entity<XenoAgentComponent> ent, ref DetermineEntityLanguagesEvent args)
+    {
+        args.SpokenLanguages.Add(XenoLanguage);
+        args.UnderstoodLanguages.Add(XenoLanguage);
+    }
+
+    private void OnInit(Entity<XenoAgentComponent> ent, ref MapInitEvent args)
+    {
+        _language.UpdateEntityLanguages(ent.Owner);
+    }
+}
diff --git a/Content.Server/StationEvents/Events/MeteorSwarmSystem.cs b/Content.Server/StationEvents/Events/MeteorSwarmSystem.cs
index 948fedf6fc1..a466f48e1bd 100644
--- a/Content.Server/StationEvents/Events/MeteorSwarmSystem.cs
+++ b/Content.Server/StationEvents/Events/MeteorSwarmSystem.cs
@@ -1,3 +1,4 @@
+using System.Linq;
 using System.Numerics;
 using Content.Server.Chat.Systems;
 using Content.Server.GameTicking.Rules;
@@ -44,11 +45,12 @@ protected override void ActiveTick(EntityUid uid, MeteorSwarmComponent component
 
         component.NextWaveTime += TimeSpan.FromSeconds(component.WaveCooldown.Next(RobustRandom));
 
+        var stations = _station.GetStations().Where(HasComp<StationEventEligibleComponent>).ToList();
 
-        if (_station.GetStations().Count == 0)
+        if (stations.Count == 0)
             return;
 
-        var station = RobustRandom.Pick(_station.GetStations());
+        var station = RobustRandom.Pick(stations); // backmen: centcomm
         if (_station.GetLargestGrid(Comp<StationDataComponent>(station)) is not { } grid)
             return;
 
diff --git a/Content.Shared/Backmen/FootPrint/FootPrintComponent.cs b/Content.Shared/Backmen/FootPrint/FootPrintComponent.cs
index cdb639665a8..e72b7266142 100644
--- a/Content.Shared/Backmen/FootPrint/FootPrintComponent.cs
+++ b/Content.Shared/Backmen/FootPrint/FootPrintComponent.cs
@@ -6,13 +6,13 @@ namespace Content.Shared.Backmen.FootPrint;
 /// <summary>
 /// This is used for marking footsteps, handling footprint drawing.
 /// </summary>
-[RegisterComponent, NetworkedComponent, AutoGenerateComponentState]
+[RegisterComponent, NetworkedComponent]
 public sealed partial class FootPrintComponent : Component
 {
     /// <summary>
     /// Owner (with <see cref="FootPrintsComponent"/>) of a print (this component).
     /// </summary>
-    [ViewVariables(VVAccess.ReadWrite), AutoNetworkedField]
+    [ViewVariables(VVAccess.ReadWrite)]
     public EntityUid PrintOwner;
 
     [DataField("solution")] public string SolutionName = "step";
diff --git a/Content.Shared/Backmen/FootPrint/FootPrintState.cs b/Content.Shared/Backmen/FootPrint/FootPrintState.cs
new file mode 100644
index 00000000000..f354fafa34d
--- /dev/null
+++ b/Content.Shared/Backmen/FootPrint/FootPrintState.cs
@@ -0,0 +1,9 @@
+using Robust.Shared.Serialization;
+
+namespace Content.Shared.Backmen.FootPrint;
+
+[Serializable, NetSerializable]
+public sealed class FootPrintState(NetEntity netEntity) : ComponentState
+{
+    public NetEntity PrintOwner { get; private set; } = netEntity;
+}
diff --git a/Content.Shared/Backmen/FootPrint/FootPrintsComponent.cs b/Content.Shared/Backmen/FootPrint/FootPrintsComponent.cs
index fdf759f3b75..b00a52fc4ac 100644
--- a/Content.Shared/Backmen/FootPrint/FootPrintsComponent.cs
+++ b/Content.Shared/Backmen/FootPrint/FootPrintsComponent.cs
@@ -1,10 +1,11 @@
 using System.Numerics;
+using Robust.Shared.GameStates;
 using Robust.Shared.Prototypes;
 using Robust.Shared.Utility;
 
 namespace Content.Shared.Backmen.FootPrint;
 
-[RegisterComponent]
+[RegisterComponent, NetworkedComponent]
 public sealed partial class FootPrintsComponent : Component
 {
     [ViewVariables(VVAccess.ReadOnly), DataField("path")]
@@ -36,7 +37,7 @@ public sealed partial class FootPrintsComponent : Component
 
     [ViewVariables(VVAccess.ReadOnly), DataField("protoId")]
     public EntProtoId<FootPrintComponent> StepProtoId = "Footstep";
-    
+
     [ViewVariables(VVAccess.ReadWrite), DataField]
     public Vector2 OffsetPrint = new(0.1f, 0f);
 
diff --git a/Resources/Locale/ru-RU/backmen/reagents/toxins.ftl b/Resources/Locale/ru-RU/backmen/reagents/toxins.ftl
index e742355b135..850e3814d58 100644
--- a/Resources/Locale/ru-RU/backmen/reagents/toxins.ftl
+++ b/Resources/Locale/ru-RU/backmen/reagents/toxins.ftl
@@ -6,5 +6,8 @@ reagent-desc-lotophagoi-oil = Сверхсильный наркотик, кот
 reagent-name-bloodsucker-toxin = вампирский вирус
 reagent-desc-bloodsucker-toxin = Многие называют это лекарством от старости, его состав говорит о том что он относится к классу токсинов и вызывает множество негативных мутаций.
 
-reagent-name-slerm = слерма ксено
-reagent-desc-slerm = Самая мерзкая жидкость в галактике, которая при попадании на кожу вызывает сильные мутации.
+reagent-name-slerm = слерм
+reagent-desc-slerm = Вкуснейший напиток в галактике
+
+reagent-name-slerm-queen = слерм королевский
+reagent-desc-slerm-queen = Вкуснейший деликатес! Секретный ингредиент который не так просто получить!
diff --git a/Resources/Prototypes/_Backmen/Entities/Mobs/NPCs/blob/blob_base.yml b/Resources/Prototypes/_Backmen/Entities/Mobs/NPCs/blob/blob_base.yml
index 3a23c1f2e97..ff6e7a7dd86 100644
--- a/Resources/Prototypes/_Backmen/Entities/Mobs/NPCs/blob/blob_base.yml
+++ b/Resources/Prototypes/_Backmen/Entities/Mobs/NPCs/blob/blob_base.yml
@@ -7,6 +7,12 @@
     snap:
       - Wall
   components:
+    - type: MobThresholds
+      thresholds:
+        0: Alive
+      currentThresholdState: Alive
+      showOverlays: false
+    - type: MobState
     - type: ZombieImmune
     - type: StatusEffects
       allowed:
diff --git a/Resources/Prototypes/_Backmen/Entities/Mobs/NPCs/xeno.yml b/Resources/Prototypes/_Backmen/Entities/Mobs/NPCs/xeno.yml
index fa18187424b..c185b30b367 100644
--- a/Resources/Prototypes/_Backmen/Entities/Mobs/NPCs/xeno.yml
+++ b/Resources/Prototypes/_Backmen/Entities/Mobs/NPCs/xeno.yml
@@ -22,9 +22,19 @@
       state: running
     noRot: true
     netsync: false
+  - type: SolutionContainerManager
+    solutions:
+      udder:
+        maxVol: 250
+        reagents:
+        - ReagentId: Slerm
+          Quantity: 30
+  - type: Udder
+    reagentId: Slerm
+    quantityPerUpdate: 25
+    growthDelay: 30
   - type: Clickable
   - type: InteractionOutline
-  - type: SolutionContainerManager
   - type: AtmosExposed
   - type: MobThresholds
     thresholds:
diff --git a/Resources/Prototypes/_Backmen/Entities/Mobs/Species/harpy.yml b/Resources/Prototypes/_Backmen/Entities/Mobs/Species/harpy.yml
index 97745041eac..5c40ee32480 100644
--- a/Resources/Prototypes/_Backmen/Entities/Mobs/Species/harpy.yml
+++ b/Resources/Prototypes/_Backmen/Entities/Mobs/Species/harpy.yml
@@ -134,6 +134,7 @@
     - type: MovementSpeedModifier
       baseWalkSpeed: 2.5
       baseSprintSpeed: 5.0
+    - type: FootPrints
 
 - type: entity
   save: false
diff --git a/Resources/Prototypes/_Backmen/GameRules/roundstart.yml b/Resources/Prototypes/_Backmen/GameRules/roundstart.yml
index 84c8c4b2a6a..e7fed260eea 100644
--- a/Resources/Prototypes/_Backmen/GameRules/roundstart.yml
+++ b/Resources/Prototypes/_Backmen/GameRules/roundstart.yml
@@ -66,6 +66,8 @@
       max: 2
       playerRatio: 40 #players = 2 blobs
       allowNonHumans: true
+      components:
+      - type: BlobCarrier
       blacklist:
         components:
         - AntagImmune
@@ -291,3 +293,34 @@
   components:
   - type: GameRule
   - type: BabelTowerRule
+
+#xeno
+- type: entity
+  id: XenoAgentGameMode
+  parent: BaseGameRule
+  categories: [ HideSpawnMenu ]
+  components:
+  - type: GameRule
+    minPlayers: 15
+    #delay: # 7-10 minutes
+    #  min: 420
+    #  max: 600
+  - type: AntagSelection
+    definitions:
+    - prefRoles: [ XenoAgent ]
+      min: 1
+      max: 2
+      playerRatio: 40 #players = 2 blobs
+      allowNonHumans: true
+      components:
+      - type: XenoAgent
+      - type: NpcFactionMember
+        factions:
+        - Xeno
+        - NanoTrasen
+      - type: XenoAcidSpiller
+      blacklist:
+        components:
+        - AntagImmune
+      mindRoles:
+      - MindRoleXenoAgent
diff --git a/Resources/Prototypes/_Backmen/Reagents/toxins.yml b/Resources/Prototypes/_Backmen/Reagents/toxins.yml
index fdd35f52367..6037aed1ae7 100644
--- a/Resources/Prototypes/_Backmen/Reagents/toxins.yml
+++ b/Resources/Prototypes/_Backmen/Reagents/toxins.yml
@@ -21,9 +21,9 @@
 # Xeno maid liquid real
 - type: reagent
   id: SlermQueenPlus
-  name: reagent-name-slerm
+  name: reagent-name-slerm-queen
   group: Toxins
-  desc: reagent-desc-slerm
+  desc: reagent-desc-slerm-queen
   physicalDesc: reagent-physical-desc-bubbling
   flavor: bitter
   color: "#b428c9"
@@ -55,4 +55,73 @@
           min: 5
         causeChance: 0.3
         disease: XenoMaidVirus
+      - !type:GenericStatusEffect
+        key: SeeingRainbows
+        component: SeeingRainbows
+        type: Add
+        time: 5
+        refresh: false
+      - !type:ChemAddMoodlet
+        moodPrototype: SpaceDrugsBenefit
+        conditions:
+        - !type:ReagentThreshold
+          reagent: Slerm
+          min: 6
 # end-backmen: Disease
+
+- type: reagent
+  id: Slerm
+  name: reagent-name-slerm
+  group: Narcotics
+  desc: reagent-desc-slerm
+  physicalDesc: reagent-physical-desc-bubbling
+  flavor: soda
+  color: "#b428c9"
+  metabolisms:
+    Narcotic:
+      effects:
+      - !type:GenericStatusEffect
+        key: SeeingRainbows
+        component: SeeingRainbows
+        type: Add
+        time: 5
+        refresh: false
+      - !type:ChemAddMoodlet
+        moodPrototype: SpaceDrugsBenefit
+        conditions:
+        - !type:ReagentThreshold
+          reagent: Slerm
+          min: 6
+# end-backmen: Disease
+
+- type: entity
+  parent: DrinkGlass
+  id: DrinkSlermGlass
+  suffix: Slerm
+  components:
+  - type: SolutionContainerManager
+    solutions:
+      drink:
+        maxVol: 30
+        reagents:
+        - ReagentId: Slerm
+          Quantity: 30
+  - type: Icon
+    sprite: Objects/Consumable/Drinks/gsodaglass.rsi
+    state: icon
+
+- type: entity
+  parent: DrinkGlass
+  id: DrinkSlermPlusGlass
+  suffix: Slerm Plus
+  components:
+  - type: SolutionContainerManager
+    solutions:
+      drink:
+        maxVol: 30
+        reagents:
+        - ReagentId: SlermQueenPlus
+          Quantity: 30
+  - type: Icon
+    sprite: Objects/Consumable/Drinks/gsodaglass.rsi
+    state: icon
diff --git a/Resources/Prototypes/_Backmen/Roles/Antags/blob.yml b/Resources/Prototypes/_Backmen/Roles/Antags/blob.yml
index 65052a123e7..f348e36bfc7 100644
--- a/Resources/Prototypes/_Backmen/Roles/Antags/blob.yml
+++ b/Resources/Prototypes/_Backmen/Roles/Antags/blob.yml
@@ -9,3 +9,15 @@
   - !type:OverallPlaytimeRequirement
     time: 54000 # 15h # Corvax-RoleTime
   discordRequired: true # backmen: antag
+
+- type: antag
+  id: XenoAgent
+  name: roles-antag-XenoAgent-name
+  antagonist: true
+  setPreference: true
+  objective: roles-antag-XenoAgent-objective
+  guides: [  ]
+  requirements:
+  - !type:OverallPlaytimeRequirement
+    time: 540000 # 150h
+  discordRequired: true # backmen: antag
diff --git a/Resources/Prototypes/_Backmen/Roles/MindRoles/mind_roles.yml b/Resources/Prototypes/_Backmen/Roles/MindRoles/mind_roles.yml
index d376b4553fd..f1ad75a58f5 100644
--- a/Resources/Prototypes/_Backmen/Roles/MindRoles/mind_roles.yml
+++ b/Resources/Prototypes/_Backmen/Roles/MindRoles/mind_roles.yml
@@ -1,3 +1,14 @@
+- type: entity
+  parent: BaseMindRoleAntag
+  id: MindRoleXenoAgent
+  name: Xeno Agent Role
+  #  description: mind-role-blob-description
+  components:
+  - type: MindRole
+    antagPrototype: XenoAgent
+    exclusiveAntag: true
+  - type: XenoAgentRole
+
 # Blob
 - type: entity
   parent: BaseMindRoleAntag
diff --git a/Resources/Prototypes/_Backmen/game_presets.yml b/Resources/Prototypes/_Backmen/game_presets.yml
index c9c0819a25c..1b9a275d7ce 100644
--- a/Resources/Prototypes/_Backmen/game_presets.yml
+++ b/Resources/Prototypes/_Backmen/game_presets.yml
@@ -43,6 +43,20 @@
   - SubGamemodesRule
   - CalmMeteorSwarmScheduler
 
+- type: gamePreset
+  id: XenoAgent
+  alias: []
+  name: xeno-agent-title
+  description: xeno-agent-description
+  showInVote: false
+  rules:
+  - XenoAgentGameMode
+  - CalmStationEventScheduler
+  - WageScheduler #backmen: currency
+  - BasicRoundstartVariation
+  - SubGamemodesRule
+  - CalmMeteorSwarmScheduler
+
 - type: gamePreset
   id: FleshCult
   alias: