Realpolitik is a cross-platform (Mac/Win32) viewer and adjudicator for the game Diplomacy, with a point-and-click interface, game history, and text and bitmap reports for GMs. It has over a dozen rule and map variants, and you can easily create your own
Real-time strategy programming game
Grobots is a real-time strategy programming game, in which programs (in a dialect of Forth) control teams of robots as they forage, reproduce and fight. It runs on Mac OS X, Windows, and (without graphics) Linux.
A game in which players program and design robots to battle with each other. Based on the original Mac game by David Harris and Lucas Dixon.
SimVRML is a system for providing a robust Virtual Reality system for the Macintosh. The focus of SimVRML is simulation and scientific computing based upon the Virtual Reality Modeling Language (VRML). SimVRML provides VR viewing for Mactel and G5 Macs