Platform(s): Commodore 64, and potentially other Commodore computers.
theVaultBASIC2.0 is a collection of C64 apps written in BASIC ( possibly compatible with multiple other Commodore computers). They are a combination of simple games, utilites, and example/demo programs, all of which are stolen from theVaultC.
There are currently 6 programs:
GraphicStuffC, GuessMyNumberC, UnixTime, RainbowType, RNGTool, and WordGenerator
I'm too lazy to copy and paste the instructions, so look here.