Ursine Core is/was a simple RPG-type game development library/toolkit for the Atari Video Computer System (VCS) model 2600. (That's the 1977 Atari game console.) This library is intended to be portable to other MOS-65xx-based computers (6507, 6502, 6510, 2A03, 8502), and introducing support for other systems is ongoing (Commodore VIC-20, 64, 16/+4, 128; Apple ][; Nintendo Entertainment System)
Ursine Core is a developer's suite hosted on a POSIX-like workstation.
The Ursine Core...