The unfinished duck object from the original Sims 1, found in the Sims Online prototype.
SimAntics is a CISC bytecode language which powers the objects in The Sims 1, The Sims 2, The Sims Online etc.
Development of SimAntics (and The Sims 1) was coordinated by Jamie Doornbos with the help of Patrick J. Barrett III and Don Hopkins.