S. M. Stirling

A huge space station on the fringes of human space, SSS-900 is controlled by the brain of Simeon, a shellperson who relieves his daily monotony by replaying computer simulations of great battles. When a battered, jury-rigged ship appears to threaten the station, they rescue the people who are fleeing from the vicious Kolnari pirates. As the Kolnari take over the station, the stationers and the Bethelites from the rescued ship must devise ways to work...