Water Margin: Oath of Destiny) in Japan, is a turn-based strategy video game developed and published by Koei,[1] and released in 1989 for MSX, MS-DOS, Amiga, and Macintosh and in 1990 for the Nintendo Entertainment System.

[2][3][4][5] In 1996, Koei issued a remake for the Japanese Sega Saturn and PlayStation featuring vastly improved graphics and new arrangements of the original songs.

[citation needed] Based on the 14th century Great Classical Novel Water Margin, the game takes place in ancient China during the reign of Emperor Huizong of the Song Dynasty.

The objective of the game is to build, sustain, and command an army of troops to capture Gao Qiu before the Jurchen invasion in January 1127.

Troops have the capability of fighting with either melee weapons, bows and arrows, magic, or dueling swords, as well as setting tiles on fire.

magazine praised the game as "one of the most complete and entertaining role-playing simulations available",[14] and gave it an honorable mention in the War/Strategy category of the 1991 Compute Choice Awards.