Mod The Sims (formerly ModTheSims2, often abbreviated as MTS) is a Sims online community founded by Stuart Stanfield (Delphy, now known as Tashiketh) in May 2004. MTS focuses on custom content for "The Sims 2", "The Sims 3" and "The Sims 4", most notably game modifications. Tutorials on how to make the aforementioned modifications are also hosted on the same site, along with forums devoted to game and modification help as well as general discussion. The site runs on vBulletin 3.0.14, with certain modifications.