[en] The Superconducting Super Collider Laboratory (SSCL) has computing requirements in several different areas at several levels of intensity. These needs vary from word processing and spreadsheet calculations on one end of the spectrum to a need for thousands of hours of super-computer time on the other. These needs and their focus will continue to develop and change throughout the life cycle of the laboratory. This document describes the computing environment needed to meet the requirements for high energy physics (HEP) Monte Carlo calculations for the simulation of SSCL physics and detectors. Two types of Monte Carlo simulations must be done: the first, to simulate the physics of the interactions that will occur at the SSCL, and the second, to determine the simulated response of the detectors that will study these interactions. The calculations to be performed in each simulation are lengthy and detailed, and could require many months per run on a VAX 11/780 and may produce several gigabyte of data per run. Consequently, a distributed computing environment of several networked high-speed computing engines is envisioned to meet these needs. These networked computers would form the basis of a centralized facility for SSCL physics and detector simulation work. It has been estimated that this computing facility will need to grow to approximately 4000 MIPS of computing horse-power by 1992