In '93 I was (among other things) the Vice President of DaNG (Dallas area NeXT Group). At one of our meetings we had a couple of kids come in and show off this FPS they were working on... I thought it was great they were building games for NeXTStep, but was surprised to hear they wrote it in C++ instead of Objective-C. They said they did C++ 'cause that made it easier to port to DOS.