Exhibit 21

SUBSIDIARIES OF AMERISTAR CASINOS, INC.

1.	Cactus Pete’s, Inc., a Nevada corporation, dba Cactus Pete’s Resort Casino and The Horseshu Hotel & Casino
2.	Ameristar Casino Vicksburg, Inc., a Mississippi corporation
3.	Ameristar Casino Council Bluffs, Inc., an Iowa corporation
4.	Ameristar Casino Las Vegas, Inc., a Nevada corporation
5.	A.C. Food Services, Inc., a Nevada corporation
6.	Ameristar Casino St. Louis, Inc., a Missouri corporation
7.	Ameristar Casino St. Charles, Inc., a Missouri corporation
8.	Ameristar Casino Kansas City, Inc., a Missouri corporation
9.	Richmond Street Development, Inc., a Pennsylvania corporation
10.	Ameristar Casino Black Hawk, Inc., a Colorado corporation, dba Mountain High Casino