diff --git a/Client/mods/deathmatch/logic/luadefs/CLuaObjectDefs.cpp b/Client/mods/deathmatch/logic/luadefs/CLuaObjectDefs.cpp
index 12ae3fa681..7f05e7a29b 100644
--- a/Client/mods/deathmatch/logic/luadefs/CLuaObjectDefs.cpp
+++ b/Client/mods/deathmatch/logic/luadefs/CLuaObjectDefs.cpp
@@ -21,6 +21,7 @@ void CLuaObjectDefs::LoadFunctions(void)
         {"isObjectStatic", IsObjectStatic},
         {"getObjectScale", GetObjectScale},
         {"isObjectBreakable", IsObjectBreakable},
+        {"getObjectMass", GetObjectMass},
         {"getObjectProperty", GetObjectProperty},
 
         // Object set funcs
@@ -32,6 +33,7 @@ void CLuaObjectDefs::LoadFunctions(void)
         {"breakObject", BreakObject},
         {"respawnObject", RespawnObject},
         {"toggleObjectRespawn", ToggleObjectRespawn},
+        {"setObjectMass", SetObjectMass},
         {"setObjectProperty", SetObjectProperty},
     };
 
@@ -55,15 +57,18 @@ void CLuaObjectDefs::AddClass(lua_State* luaVM)
 
     lua_classfunction(luaVM, "getScale", "getObjectScale");
     lua_classfunction(luaVM, "isBreakable", "isObjectBreakable");
+    lua_classfunction(luaVM, "getMass", "getObjectMass");
     lua_classfunction(luaVM, "getProperties", GetObjectProperties);
     lua_classfunction(luaVM, "getProperty", "getObjectProperty");
 
     lua_classfunction(luaVM, "setScale", "setObjectScale");
     lua_classfunction(luaVM, "setBreakable", "setObjectBreakable");
+    lua_classfunction(luaVM, "setMass", "setObjectMass");
     lua_classfunction(luaVM, "setProperty", "setObjectProperty");
 
     lua_classvariable(luaVM, "scale", "setObjectScale", "getObjectScale");
     lua_classvariable(luaVM, "breakable", "setObjectBreakable", "isObjectBreakable");
+    lua_classvariable(luaVM, "mass", "setObjectMass", "getObjectMass");
     lua_classvariable(luaVM, "properties", nullptr, GetObjectProperties);
 
     // Add deprecated methods for backwards compatibility
@@ -206,6 +211,29 @@ int CLuaObjectDefs::IsObjectBreakable(lua_State* luaVM)
     return 1;
 }
 
+int CLuaObjectDefs::GetObjectMass(lua_State* luaVM)
+{
+    //  float getObjectMass ( object theObject )
+    CClientObject* pObject;
+    float          fMass;
+
+    CScriptArgReader argStream(luaVM);
+    argStream.ReadUserData(pObject);
+    if (!argStream.HasErrors())
+    {
+        if (CStaticFunctionDefinitions::GetObjectMass(*pObject, fMass))
+        {
+            lua_pushnumber(luaVM, fMass);
+            return 1;
+        }
+    }
+    else
+        m_pScriptDebugging->LogCustom(luaVM, argStream.GetFullErrorMessage());
+
+    lua_pushboolean(luaVM, false);
+    return 1;
+}
+
 int CLuaObjectDefs::GetObjectProperties (lua_State* luaVM)
 {
     lua_pushstring(luaVM, "all");
@@ -545,6 +573,31 @@ int CLuaObjectDefs::ToggleObjectRespawn(lua_State* luaVM)
     return 1;
 }
 
+int CLuaObjectDefs::SetObjectMass(lua_State* luaVM)
+{
+    //  bool setObjectMass ( object theObject, float fMass )
+    CClientEntity* pEntity;
+    float          fMass;
+
+    CScriptArgReader argStream(luaVM);
+    argStream.ReadUserData(pEntity);
+    argStream.ReadNumber(fMass);
+
+    if (!argStream.HasErrors())
+    {
+        if (CStaticFunctionDefinitions::SetObjectMass(*pEntity, fMass))
+        {
+            lua_pushboolean(luaVM, true);
+            return 1;
+        }
+    }
+    else
+        m_pScriptDebugging->LogCustom(luaVM, argStream.GetFullErrorMessage());
+
+    lua_pushboolean(luaVM, false);
+    return 1;
+}
+
 int CLuaObjectDefs::SetObjectProperty(lua_State* luaVM)
 {
     //  bool setObjectProperty ( object theObject, string property, ... )
diff --git a/Client/mods/deathmatch/logic/luadefs/CLuaObjectDefs.h b/Client/mods/deathmatch/logic/luadefs/CLuaObjectDefs.h
index 4988478126..46be9014b9 100644
--- a/Client/mods/deathmatch/logic/luadefs/CLuaObjectDefs.h
+++ b/Client/mods/deathmatch/logic/luadefs/CLuaObjectDefs.h
@@ -25,6 +25,7 @@ class CLuaObjectDefs : public CLuaDefs
     LUA_DECLARE(IsObjectStatic);
     LUA_DECLARE(GetObjectScale);
     LUA_DECLARE(IsObjectBreakable);
+    LUA_DECLARE(GetObjectMass);
     LUA_DECLARE(GetObjectProperty);
     LUA_DECLARE(GetObjectProperties);
 
@@ -38,5 +39,6 @@ class CLuaObjectDefs : public CLuaDefs
     LUA_DECLARE(BreakObject);
     LUA_DECLARE(RespawnObject);
     LUA_DECLARE(ToggleObjectRespawn);
+    LUA_DECLARE(SetObjectMass);
     LUA_DECLARE(SetObjectProperty);
 };