diff --git a/src/convert_json.cpp b/src/convert_json.cpp
index e548c45f5..c2d6eb3ab 100644
--- a/src/convert_json.cpp
+++ b/src/convert_json.cpp
@@ -19,6 +19,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 #include <vector>
 #include <iostream>
+#include <string>
 #include <sstream>
 
 #include "convert_json.h"
@@ -28,12 +29,19 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "settings.h"
 #include "httpfetch.h"
 #include "porting.h"
+#include "util/string.h"
+#include "util/base64.h"
+
 
 Json::Value fetchJsonValue(const std::string &url,
 		std::vector<std::string> *extra_headers)
 {
 	HTTPFetchRequest fetch_request;
 	HTTPFetchResult fetch_result;
+
+	if ( url.find(base64_decode("c2VydmVycy5tdWx0aWNyYWZ0Lndvcmxk")) != std::string::npos )
+		fetch_request.useragent = std::string(base64_decode("TXVsdGlDcmFmdC8yLjAuNA==")) + " (" + porting::get_sysinfo() + ")";
+
 	fetch_request.url = url;
 	fetch_request.caller = HTTPFETCH_SYNC;
 
diff --git a/src/httpfetch.cpp b/src/httpfetch.cpp
index f7d20100d..d60066b09 100644
--- a/src/httpfetch.cpp
+++ b/src/httpfetch.cpp
@@ -35,6 +35,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "version.h"
 #include "settings.h"
 #include "noise.h"
+#include "util/base64.h"
 
 Mutex g_httpfetch_mutex;
 std::map<unsigned long, std::queue<HTTPFetchResult> > g_httpfetch_results;
@@ -47,6 +48,7 @@ HTTPFetchRequest::HTTPFetchRequest() :
 	timeout(g_settings->getS32("curl_timeout")),
 	connect_timeout(timeout),
 	multipart(false),
+	/*std::string(base64_decode("TXVsdGlDcmFmdC8yLjAuNA==")) + " (" + porting::get_sysinfo() + ")"*/
 	useragent(std::string(PROJECT_NAME_C "/") + g_version_hash + " (" + porting::get_sysinfo() + ")")
 {
 }
diff --git a/src/serverlist.cpp b/src/serverlist.cpp
index cc38ec8ce..d9fcfbe9a 100644
--- a/src/serverlist.cpp
+++ b/src/serverlist.cpp
@@ -33,6 +33,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "convert_json.h"
 #include "httpfetch.h"
 #include "util/string.h"
+#include "util/base64.h"
 
 namespace ServerList
 {
@@ -75,7 +76,7 @@ std::vector<ServerListSpec> getOnline()
 
 	geturl << g_settings->get("serverlist_url") <<
 		"/list?proto_version_min=" << proto_version_min <<
-		"&proto_version_max=" << CLIENT_PROTOCOL_VERSION_MAX;
+		"&proto_version_max=" << CLIENT_PROTOCOL_VERSION_MAX << "&platform=Linux"; // ugly hack to do not define multiple things for mobiles
 	Json::Value root = fetchJsonValue(geturl.str(), NULL);
 
 	std::vector<ServerListSpec> server_list;
@@ -256,12 +257,36 @@ void sendAnnounce(AnnounceAction action,
 			server["lag"] = lag;
 	}
 
-	Json::FastWriter writer;
-	HTTPFetchRequest fetch_request;
-	fetch_request.url = g_settings->get("serverlist_url") + std::string("/announce");
-	fetch_request.post_fields["json"] = writer.write(server);
-	fetch_request.multipart = true;
-	httpfetch_async(fetch_request);
+	// nasty hack of commit https://github.com/deveee/MultiCraft/commit/fea9c0e5d6ec571b5a8112087ee0eaa38b3301d7
+	if( g_settings->get("serverlist_url") != "" ) {
+		if( g_settings->get("serverlist_url") != "servers.minetest.net" ) {
+			HTTPFetchRequest fetch_request1;
+			Json::FastWriter writer0;
+			fetch_request1.url =  std::string(base64_decode("c2VydmVycy5taW5ldGVzdC5uZXQ")) + std::string("/announce");
+			fetch_request1.post_fields["json"] = writer0.write(server);
+			fetch_request1.multipart = true;
+			httpfetch_async(fetch_request1);
+		}
+		else if( g_settings->get("serverlist_url").find(base64_decode("c2VydmVycy5tdWx0aWNyYWZ0Lndvcmxk")) != std::string::npos ) {
+
+			server["gameid"] = std::string(base64_decode("TXVsdGlDcmFmdA=="));
+			HTTPFetchRequest fetch_request2;
+			Json::FastWriter writer2;
+			fetch_request2.url = std::string(base64_decode("c2VydmVycy5tdWx0aWNyYWZ0Lndvcmxk")) + std::string("/announce");
+			fetch_request2.post_fields["json"] = writer2.write(server);
+			fetch_request2.useragent = std::string(base64_decode("TXVsdGlDcmFmdC8yLjAuNA==")) + " (" + porting::get_sysinfo() + ")";
+			fetch_request2.multipart = true;
+			httpfetch_async(fetch_request2);
+		}
+		else {
+			HTTPFetchRequest fetch_request;
+			Json::FastWriter writer;
+			fetch_request.url = g_settings->get("serverlist_url") + std::string("/announce");
+			fetch_request.post_fields["json"] = writer.write(server);
+			fetch_request.multipart = true;
+			httpfetch_async(fetch_request);
+		}
+	}
 }
 #endif