Banners of Yunhe is a turn-based strategy game written for Kalgoorlie Retro Gaming. The Jade Court has fallen silent, and six houses raise their banners across Yunhe, a realm of 18 cities. You lead one house in the campaign The Broken Seal: govern your cities, win the people's trust, find and recruit officers, make and break alliances, and fight invasions on a field of hexes until your house holds every city.

Each month you give orders city by city: develop workshops, fields and waterworks, draft and train soldiers, search for officers, scout your neighbours, send convoys and march on enemy cities. Battles are fought on a hex field over at most 20 days, with foot, archers and cavalry, a gate to break and a keep to take. The computer leads the other five houses with the same rules as you, and you can hand quiet cities to their governors.

The map, towns, banners, battlefield and squads are painted by the game itself, with the seasons changing on the map. Every place, person and house in it is invented.

The current version is 1.1.0 (7 November 2026). It is for one player against the computer; online games by email turns are planned.

The two editions are built from the same code and play exactly the same. Export and Import move a campaign between them: see Saves.

The same guides are in the game: press Guide on the title screen or in the top bar.

From https://retro.theiguru.au/yunhe/, the Heisenbergs Files area on the BBS, or the anonymous FTP at home (yunhe folder):