Rexx/EEC is a Rexx external function package providing support for the Encryption, Encoding and Compression of data. Equivalent functions exist for Decryption, Decoding and Decompression.
Virtual machine implementation for visual novel games
ViLE is a collection of interpreters capable of decoding visual novels and dating sims. You can use ViLE as a drop-in replacement for the original executable to play the games, but ViLE also provides exclusive titles and features such as software scaling.
OzVM is a simple, lightweight, secure virtual machine. The current target application of OzVM is OzStream, allowing platform-independent self-decoding data, which abstracts encoded data from client applications.