The curses interface now includes status lines and adjustable panes. The number of sides may be up to 30. The world may now be a hexagon as well as a cylinder. Multiple units may stack in a single cell. The combat model is more sophisticated, now including the possibility for stack and occupants to protect a defender, for retreat, and for variable damage from a single hit.
Units now have plans that include multiple goals and a task agenda.
Tasks track successes and failures of actions, choosing actions as needed to complete successfully. Games may include a seasonal cycle and associated effects. Random game synthesis methods now include maze generation, country expansion, river and road generation, and grammar-based unit and feature name synthesis. Games may now have variants that are chosen at game setup time. The AI machinery now supports any number of different types of AIs.