NetherRealmâ€™s disturbingly brutal brawler is the UKâ€™s number one for a third consecutive week.
Just one more week is needed to topple Battlefield Hardlineâ€™s record of four weeks straight – the longest a game has dominated the top spot so far this year.
With a 32% dip in sales and the anticipated Project CARS out this Friday though, Mortal Kombat X may very well find itself dethroned come next Monday.
Positions #2 and #3 are held by GTA V and Battlefield Hardline for a second week running.
FIFA 15 and Minecraft: PlayStation Edition then follow to form the UKâ€™s top five.
Middle-Earth: Shadow of Mordor is the top 40â€™s biggest riser – up from #28 to #18, despite this weekâ€™s incoming GOTY edition – while Bloodborne is the chartâ€™s biggest faller, dropping from #12 to #21.
Monster Hunter 4: Ultimate and Mario Party 10 meanwhile make top 40 re-appearances at #27 and #35 respectively.