Vintage T.rex The Dinosaur Survival Adventure computer simulation game by CBS Software and SciSoft, part of the Adventures in Science series. This 1984 release for the Apple II family (including II+, IIe, and IIc) features open-ended gameplay where players manage the survival of a Tyrannosaurus rex through various environmental conditions and dinosaur encounters. The set includes the original clamshell case, the 5.25-inch floppy disk (Introduction A), and the comprehensive spiral-bound program guide. Note that the disk and manual bear property stamps from Smithtown Central School. A classic piece of educational software history developed by Keron Productions. Untested.