  Planning high-energy collision experiments for the next few decades requires
extensive Monte Carlo simulations in order to accomplish physics goals of these
experiments. Such simulations are essential for understanding fundamental
physics processes, as well as for setting up the detector parameters that help
establish R&D projects required over the next few decades. This paper describes
a public repository with Monte Carlo event samples before and after
detector-response simulation. The goal of this repository is to facilitate the
accomplishment of many goals in planning a next generation of particle
experiments.
