diff --git a/Source/Mods/VanillaAspirationsExpanded.cs b/Source/Mods/VanillaAspirationsExpanded.cs
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+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
+using HarmonyLib;
+using Multiplayer.API;
+using RimWorld;
+using Verse;
+
+namespace Multiplayer.Compat;
+
+/// <summary>Vanilla Aspirations Expanded by Oskar Potocki, Legodude17, Sarg Bjornson</summary>
+/// <see href="https://github.com/Vanilla-Expanded/VanillaAspirationsExpanded"/>
+/// <see href="https://steamcommunity.com/sharedfiles/filedetails/?id=3268401022"/>
+[MpCompatFor("VanillaExpanded.VanillaAspirationsExpanded")]
+public class VanillaAspirationsExpanded
+{
+    #region Fields
+    
+    // MP Compat
+    private static bool isDrawingDialog = false;
+
+    // List<AspirationDef>
+    private static Type aspirationDefListType;
+
+    // SyncDelegates
+    private static FastInvokeHandler pickRandomTraitAndPassionsMethod;
+
+    // ChoiceLetter_GrowthMoment_Aspirations
+    private static AccessTools.FieldRef<ChoiceLetter_GrowthMoment, IList> aspirationChoicesField;
+    private static AccessTools.FieldRef<ChoiceLetter_GrowthMoment, int> aspirationGainsCountField;
+    private static FastInvokeHandler trySetAspirationChoicesMethod;
+    private static FastInvokeHandler makeAspirationChoicesMethod;
+
+    #endregion
+
+    #region Main Patch
+
+    public VanillaAspirationsExpanded(ModContentPack mod)
+    {
+        // Run the patches
+        MpCompatPatchLoader.LoadPatch(this);
+
+        // Setup list type with a generic we can't reference
+        var type = AccessTools.TypeByName("VAspirE.AspirationDef");
+        aspirationDefListType = typeof(List<>).MakeGenericType(type);
+
+        // Access MP method
+        type = AccessTools.TypeByName("Multiplayer.Client.SyncDelegates");
+        var method = AccessTools.DeclaredMethod(type, "PickRandomTraitAndPassions");
+        pickRandomTraitAndPassionsMethod = MethodInvoker.GetHandler(method);
+
+        // Handle aspirations fulfilled letter/dialog
+        type = AccessTools.TypeByName("VAspirE.ChoiceLetter_AspirationsFulfilled");
+        // This letter/dialog have different type, but are otherwise mostly the
+        // same as vanilla growth moment ones. MP should handle those already,
+        // and we only need to register the default choice for the letter.
+        MP.RegisterDefaultLetterChoice(method, type);
+
+        // Handle growth moment with aspirations letter/dialog
+        type = AccessTools.TypeByName("VAspirE.ChoiceLetter_GrowthMoment_Aspirations");
+        // Setup fields
+        aspirationChoicesField = AccessTools.FieldRefAccess<IList>(type, "aspirationChoices");
+        aspirationGainsCountField = AccessTools.FieldRefAccess<int>(type, "aspirationGainsCount");
+        // Setup methods
+        trySetAspirationChoicesMethod = MethodInvoker.GetHandler(AccessTools.DeclaredMethod(type, "TrySetAspirationChoices"));
+        var makeAspirationChoices = AccessTools.DeclaredMethod(type, "MakeAspirationChoices");
+        makeAspirationChoicesMethod = MethodInvoker.GetHandler(makeAspirationChoices);
+        // Sync methods
+        MP.RegisterSyncMethod(makeAspirationChoices);
+        // Letter timeout handling
+        MP.RegisterDefaultLetterChoice(MpMethodUtil.MethodOf(PickRandomAspirationsTraitPassions), type);
+    }
+
+    #endregion
+
+    #region Choice letter expiry handling
+
+    private static void PickRandomAspirationsTraitPassions(ChoiceLetter_GrowthMoment letter)
+    {
+        // Make sure the aspirations are prepared
+        trySetAspirationChoicesMethod(letter);
+
+        var aspirationChoices = aspirationChoicesField(letter);
+        var aspirationCount = aspirationGainsCountField(letter);
+
+        // If there's any aspirations to pick from, pick some random ones.
+        if (aspirationCount > 0 && aspirationChoices != null)
+            makeAspirationChoicesMethod(letter,
+                Activator.CreateInstance(aspirationDefListType, aspirationChoices.Cast<Def>().InRandomOrder().Take(aspirationCount)));
+        // This is technically no-op due to null check, but include it just in case
+        // the mod decides to do something with it at some point (or a different mod uses it).
+        else
+            makeAspirationChoicesMethod(letter, null);
+
+        // MP method to pick traits and passions, which handles normal, vanilla growth moment.
+        // This will also handle closing the letter.
+        pickRandomTraitAndPassionsMethod(letter);
+    }
+
+    #endregion
+
+    #region Seed aspiration generation RNG
+
+    // The letter tries to generate the options when opened. Make the picks seeded, so all players will get the same ones.
+    [MpCompatPrefix("VAspirE.ChoiceLetter_GrowthMoment_Aspirations", "TrySetAspirationChoices")]
+    private static void PreTrySetAspirationChoices(ChoiceLetter_GrowthMoment __instance)
+        => Rand.PushState(Gen.HashCombineInt(__instance.pawn.thingIDNumber, __instance.arrivalTick));
+
+    [MpCompatPostfix("VAspirE.ChoiceLetter_GrowthMoment_Aspirations", "TrySetAspirationChoices")]
+    private static void PostTrySetAspirationChoices()
+        => Rand.PopState();
+
+    #endregion
+
+    #region Don't close dialog when drawing it
+
+    // Patches to not remove the letter if it's in the process of being drawn.
+    // Rather than prefixing LetterStack.RemoveLetter we could instead change
+    // Multiplayer.IsDrawingGrowthMomentDialog.isDrawing to true/false, and let
+    // MP handle this itself. However, it's safer to do a new patch for this.
+
+    [MpCompatPrefix("VAspirE.Dialog_GrowthMomentChoices_Aspirations", nameof(Dialog_GrowthMomentChoices.DoWindowContents))]
+    private static void PreDoWindowContents() => isDrawingDialog = true;
+
+    [MpCompatFinalizer("VAspirE.Dialog_GrowthMomentChoices_Aspirations", nameof(Dialog_GrowthMomentChoices.DoWindowContents))]
+    private static void PostDoWindowContents() => isDrawingDialog = false;
+
+    [MpCompatPrefix(typeof(LetterStack), nameof(LetterStack.RemoveLetter))]
+    private static bool DontRemoveChoiceLetter() => !MP.IsInMultiplayer || !isDrawingDialog;
+
+    #endregion
+}
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