Sim Classics 3-in-1 Pack (SimFarm / SimAnt / SimCity) 3 best-selling Sim Games on one CD! Sim City Classic: "The Original City Simulator". Sim Farm: "Sim City's Country Cousin" Sim Ant: "The Electronic Ant Colony". Windows: Windows 3.1 through XP. Mac: pre-OS/X. May work in Classic mode.