diff --git a/src/main/java/in/dragonbra/javasteam/steam/handlers/steamapps/SteamApps.kt b/src/main/java/in/dragonbra/javasteam/steam/handlers/steamapps/SteamApps.kt
index 49577e99..c2f9a7b8 100644
--- a/src/main/java/in/dragonbra/javasteam/steam/handlers/steamapps/SteamApps.kt
+++ b/src/main/java/in/dragonbra/javasteam/steam/handlers/steamapps/SteamApps.kt
@@ -11,6 +11,7 @@ import `in`.dragonbra.javasteam.generated.MsgClientAppUsageEvent
 import `in`.dragonbra.javasteam.generated.MsgClientGetLegacyGameKey
 import `in`.dragonbra.javasteam.protobufs.steamclient.SteammessagesClientserver.CMsgClientGamesPlayed
 import `in`.dragonbra.javasteam.protobufs.steamclient.SteammessagesClientserver.CMsgClientGetAppOwnershipTicket
+import `in`.dragonbra.javasteam.protobufs.steamclient.SteammessagesClientserver.CMsgClientRequestEncryptedAppTicket
 import `in`.dragonbra.javasteam.protobufs.steamclient.SteammessagesClientserver2.CMsgClientCheckAppBetaPassword
 import `in`.dragonbra.javasteam.protobufs.steamclient.SteammessagesClientserver2.CMsgClientGetDepotDecryptionKey
 import `in`.dragonbra.javasteam.protobufs.steamclient.SteammessagesClientserver2.CMsgClientRequestFreeLicense
@@ -22,6 +23,7 @@ import `in`.dragonbra.javasteam.steam.handlers.ClientMsgHandler
 import `in`.dragonbra.javasteam.steam.handlers.steamapps.callback.AppOwnershipTicketCallback
 import `in`.dragonbra.javasteam.steam.handlers.steamapps.callback.CheckAppBetaPasswordCallback
 import `in`.dragonbra.javasteam.steam.handlers.steamapps.callback.DepotKeyCallback
+import `in`.dragonbra.javasteam.steam.handlers.steamapps.callback.EncryptedAppTicketCallback
 import `in`.dragonbra.javasteam.steam.handlers.steamapps.callback.FreeLicenseCallback
 import `in`.dragonbra.javasteam.steam.handlers.steamapps.callback.GameConnectTokensCallback
 import `in`.dragonbra.javasteam.steam.handlers.steamapps.callback.GuestPassListCallback
@@ -94,6 +96,34 @@ class SteamApps : ClientMsgHandler() {
         return AsyncJobSingle(client, request.sourceJobID)
     }
 
+    /**
+     * Requests an encrypted app ticket for the specified AppID.
+     * Results are returned in an [EncryptedAppTicketCallback] callback.
+     *
+     * @param appId The appid to request the encrypted ticket for.
+     * @param userdata Optional user data to include in the ticket.
+     * @return The Job ID of the request. This can be used to find the appropriate [EncryptedAppTicketCallback].
+     */
+    @JavaSteamAddition
+    @JvmOverloads
+    fun requestEncryptedAppTicket(appId: Int, userdata: ByteArray? = null): AsyncJobSingle<EncryptedAppTicketCallback> {
+        val request = ClientMsgProtobuf<CMsgClientRequestEncryptedAppTicket.Builder>(
+            CMsgClientRequestEncryptedAppTicket::class.java,
+            EMsg.ClientRequestEncryptedAppTicket
+        ).apply {
+            sourceJobID = client.getNextJobID()
+
+            body.appId = appId
+            userdata?.let {
+                body.userdata = ByteString.copyFrom(it)
+            }
+        }
+
+        client.send(request)
+
+        return AsyncJobSingle(client, request.sourceJobID)
+    }
+
     /**
      * Request PICS access tokens for an app or package.
      * Results are returned in a [PICSTokensCallback] callback.
@@ -468,6 +498,7 @@ class SteamApps : ClientMsgHandler() {
             EMsg.ClientUpdateGuestPassesList -> GuestPassListCallback(packetMsg)
             EMsg.ClientCheckAppBetaPasswordResponse -> CheckAppBetaPasswordCallback(packetMsg)
             EMsg.ClientPICSPrivateBetaResponse -> PrivateBetaCallback(packetMsg)
+            EMsg.ClientRequestEncryptedAppTicketResponse -> EncryptedAppTicketCallback(packetMsg)
             else -> null
         }
     }
diff --git a/src/main/java/in/dragonbra/javasteam/steam/handlers/steamapps/callback/EncryptedAppTicketCallback.kt b/src/main/java/in/dragonbra/javasteam/steam/handlers/steamapps/callback/EncryptedAppTicketCallback.kt
new file mode 100644
index 00000000..ad3cfba2
--- /dev/null
+++ b/src/main/java/in/dragonbra/javasteam/steam/handlers/steamapps/callback/EncryptedAppTicketCallback.kt
@@ -0,0 +1,48 @@
+package `in`.dragonbra.javasteam.steam.handlers.steamapps.callback
+
+import `in`.dragonbra.javasteam.base.ClientMsgProtobuf
+import `in`.dragonbra.javasteam.base.IPacketMsg
+import `in`.dragonbra.javasteam.enums.EResult
+import `in`.dragonbra.javasteam.protobufs.steamclient.EncryptedAppTicketOuterClass.EncryptedAppTicket
+import `in`.dragonbra.javasteam.protobufs.steamclient.SteammessagesClientserver.CMsgClientRequestEncryptedAppTicketResponse
+import `in`.dragonbra.javasteam.steam.handlers.steamapps.SteamApps
+import `in`.dragonbra.javasteam.steam.steamclient.callbackmgr.CallbackMsg
+
+/**
+ * This callback is received in response to calling [SteamApps.requestEncryptedAppTicket]
+ */
+class EncryptedAppTicketCallback(packetMsg: IPacketMsg) : CallbackMsg() {
+
+    /**
+     * Gets the result of requesting the encrypted app ticket.
+     */
+    val result: EResult
+
+    /**
+     * Gets the AppID this ticket is for.
+     */
+    val appID: Int
+
+    /**
+     * Gets the encrypted app ticket, or null if the request failed.
+     */
+    val encryptedAppTicket: EncryptedAppTicket?
+
+    init {
+        val ticketResponse = ClientMsgProtobuf<CMsgClientRequestEncryptedAppTicketResponse.Builder>(
+            CMsgClientRequestEncryptedAppTicketResponse::class.java,
+            packetMsg
+        )
+        val msg = ticketResponse.body
+
+        jobID = ticketResponse.targetJobID
+
+        result = EResult.from(msg.eresult)
+        appID = msg.appId
+        encryptedAppTicket = if (msg.hasEncryptedAppTicket()) {
+            msg.encryptedAppTicket
+        } else {
+            null
+        }
+    }
+}