diff --git a/src/saveload/CMakeLists.txt b/src/saveload/CMakeLists.txt
--- a/src/saveload/CMakeLists.txt
+++ b/src/saveload/CMakeLists.txt
@@ -30,6 +30,7 @@ add_files(
     oldloader.h
     oldloader_sl.cpp
     order_sl.cpp
+    randomizer_sl.cpp
     saveload.cpp
     saveload.h
     saveload_filter.h
diff --git a/src/saveload/afterload.cpp b/src/saveload/afterload.cpp
--- a/src/saveload/afterload.cpp
+++ b/src/saveload/afterload.cpp
@@ -255,8 +255,6 @@ static void InitializeWindowsAndCaches()
 	UpdateAllVirtCoords();
 	ResetViewportAfterLoadGame();
 
-	ScriptObject::InitializeRandomizers();
-
 	for (Company *c : Company::Iterate()) {
 		/* For each company, verify (while loading a scenario) that the inauguration date is the current year and set it
 		 * accordingly if it is not the case.  No need to set it on companies that are not been used already,
@@ -3288,6 +3286,10 @@ bool AfterLoadGame()
 		}
 	}
 
+	if (IsSavegameVersionBefore(SLV_SCRIPT_RANDOMIZER)) {
+		ScriptObject::InitializeRandomizers();
+	}
+
 	for (Company *c : Company::Iterate()) {
 		UpdateCompanyLiveries(c);
 	}
diff --git a/src/saveload/randomizer_sl.cpp b/src/saveload/randomizer_sl.cpp
new file mode 100644
--- /dev/null
+++ b/src/saveload/randomizer_sl.cpp
@@ -0,0 +1,51 @@
+/*
+ * This file is part of OpenTTD.
+ * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
+ * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/** @file randomizer_sl.cpp Code handling saving and loading of script randomizers */
+
+#include "../stdafx.h"
+#include "../script/api/script_object.hpp"
+#include "saveload.h"
+#include "saveload_internal.h"
+#include "../safeguards.h"
+
+static const SaveLoad _randomizer_desc[] = {
+	SLE_VAR(Randomizer, state[0], SLE_UINT32),
+	SLE_VAR(Randomizer, state[1], SLE_UINT32),
+};
+
+struct SRNDChunkHandler : ChunkHandler {
+	SRNDChunkHandler() : ChunkHandler('SRND', CH_TABLE)
+	{}
+
+	void Save() const override
+	{
+		SlTableHeader(_randomizer_desc);
+
+		for (Owner owner = OWNER_BEGIN; owner < OWNER_END; owner++) {
+			SlSetArrayIndex(owner);
+			SlObject(&ScriptObject::GetRandomizer(owner), _randomizer_desc);
+		}
+	}
+
+	void Load() const override
+	{
+		SlTableHeader(_randomizer_desc);
+
+		Owner index;
+		while ((index = (Owner)SlIterateArray()) != (Owner)-1) {
+			SlObject(&ScriptObject::GetRandomizer(index), _randomizer_desc);
+		}
+	}
+};
+
+static const SRNDChunkHandler SRND;
+static const ChunkHandlerRef randomizer_chunk_handlers[] = {
+	SRND,
+};
+
+extern const ChunkHandlerTable _randomizer_chunk_handlers(randomizer_chunk_handlers);
diff --git a/src/saveload/saveload.cpp b/src/saveload/saveload.cpp
--- a/src/saveload/saveload.cpp
+++ b/src/saveload/saveload.cpp
@@ -250,6 +250,7 @@ static const std::vector<ChunkHandlerRef
 	extern const ChunkHandlerTable _object_chunk_handlers;
 	extern const ChunkHandlerTable _persistent_storage_chunk_handlers;
 	extern const ChunkHandlerTable _water_region_chunk_handlers;
+	extern const ChunkHandlerTable _randomizer_chunk_handlers;
 
 	/** List of all chunks in a savegame. */
 	static const ChunkHandlerTable _chunk_handler_tables[] = {
@@ -288,6 +289,7 @@ static const std::vector<ChunkHandlerRef
 		_object_chunk_handlers,
 		_persistent_storage_chunk_handlers,
 		_water_region_chunk_handlers,
+		_randomizer_chunk_handlers,
 	};
 
 	static std::vector<ChunkHandlerRef> _chunk_handlers;
diff --git a/src/saveload/saveload.h b/src/saveload/saveload.h
--- a/src/saveload/saveload.h
+++ b/src/saveload/saveload.h
@@ -376,6 +376,7 @@ enum SaveLoadVersion : uint16_t {
 	SLV_MAX_LOAN_FOR_COMPANY,               ///< 330  PR#11224 Separate max loan for each company.
 	SLV_DEPOT_UNBUNCHING,                   ///< 331  PR#11945 Allow unbunching shared order vehicles at a depot.
 	SLV_AI_LOCAL_CONFIG,                    ///< 332  PR#12003 Config of running AI is stored inside Company.
+	SLV_SCRIPT_RANDOMIZER,                  ///< 333  PR#12063 Save script randomizers.
 
 	SL_MAX_VERSION,                         ///< Highest possible saveload version
 };