RunMC is an object-oriented framework aimed to run various FORTRAN Monte Carlo (MC) programs for simulation of the particle production in high-energy collisions between elementary particles. It allows to fill 1D and 2D histograms, as well as to create ntuples (ROOT trees). The program is written in C++, and interfaced with ROOT [1,2] and CLHEP [3,4] library classes. To include user-defined histograms, you need a minimum coding. It comes already with a number of histograms, which can be used to look at different event characteristics for many high-energy processes. One can also write a ROOT event tree with selected events for further analysis. This application is open-source licensed, and at this moment, it is available on the LINUX platforms with g++ and f77 compilers.