Abstract
We have developed a system that visualizes simulation results of terraforming of the Mars. Terraforming aims to change and improve environments of the planet artificially, and to remodel the planets where people can live like the Earth. Our system can visualize the results of terraforming simulation of the Mars for the people who design new SF game plots but are not experts of terraforming. Real-time visualization can show them very realistic images of changes on the Mars caused by terraforming.