Set of 4, operation confirmed. They are in very good condition with no scratches, but please consider them as having scratches since they are used items. ARMORED CORE 4 ANSWER ARMORED CORE VERDICT DAY ARMORED CORE V ARMORED CORE 4 These are the four games. I'm decluttering and organizing things I don't need. I think they are cheap, so first come, first served. These are used items, so please refrain from purchasing if you are sensitive to such things.