Exhibit 21
Pinnacle Entertainment, Inc.
List of Subsidiaries
| Subsidiary | State of Organization | Name(s) under which Subsidiary does Business | |
| ACE Gaming, LLC | New Jersey | ||
| Ameristar Casino Black Hawk, Inc. | Colorado | Ameristar Casino Black Hawk | |
| Ameristar Casino Council Bluffs, Inc. | Iowa | Ameristar Casino Council Bluffs | |
| Ameristar Casino Kansas City, Inc. | Missouri | Ameristar Casino Kansas City | |
| Ameristar Casino St. Charles, Inc. | Missouri | Ameristar Casino St. Charles | |
| Ameristar Casino Vicksburg, Inc. | Mississippi | Ameristar Casino Vicksburg | |
| Ameristar Casino East Chicago, LLC | Indiana | Ameristar Casino East Chicago | |
| Ameristar Casino Springfield, LLC | Massachusetts | ||
| Ameristar East Chicago Holdings, LLC | Indiana | ||
| Ameristar Lake Charles Holdings, LLC | Louisiana | ||
| AREP Boardwalk Properties LLC | Delaware | ||
| Belterra Resort Indiana, LLC | Nevada | Belterra Casino Resort & Spa | |
| Boomtown, LLC | Delaware | ||
| Cactus Pete’s, Inc. | Nevada | Cactus Pete’s | |
| Casino Magic, LLC | Minnesota | ||
| Casino Magic (Europe) B.V. | Netherlands | ||
| Casino Magic Hellas Management Services, S.A. | Greece | ||
| Double Bogey, LLC | Texas | ||
| Louisiana-I Gaming, A Louisiana Partnership in Commendam | Louisiana | Boomtown New Orleans | |
| OGLE HAUS, LLC | Indiana | Ogle Haus Inn | |
| Pinnacle Retama Partners, LLC | Texas | ||
| PNK (Baton Rouge) Partnership | Louisiana | L’Auberge Casino & Hotel Baton Rouge | |
| PNK (BOSSIER CITY), Inc. | Louisiana | Boomtown Bossier City | |
| PNK Development 7, LLC | Delaware | Heartland Poker Tour | |
| PNK Development 8, LLC | Delaware | ||
| PNK Development 9, LLC | Delaware | ||
| PNK Development 10, LLC | Delaware | ||
| PNK Development 11, LLC | Nevada | ||
| PNK Development 17, LLC | Nevada | ||
| PNK Development 18, LLC | Delaware | ||
| PNK Development 28, LLC | Delaware | ||
| PNK Development 29, LLC | Delaware | ||
| PNK Development 30, LLC | Delaware | ||
| PNK Development 31, LLC | Delaware | ||
| PNK Development 33, LLC | Delaware | ||
| PNK (Kansas), LLC | Kansas | ||
| PNK (LAKE CHARLES), L.L.C. | Louisiana | L’Auberge Casino Resort Lake Charles | |
| PNK (Ohio), LLC | Ohio | Belterra Park | |
| PNK (Ohio) II, LLC | Ohio | ||
| PNK (Ohio) III, LLC | Ohio | ||
| PNK (River City), LLC | Missouri | River City Casino | |
| PNK (SA), LLC | Texas | ||
| PNK (SAM), LLC | Texas | Retama Park | |
| PNK (SAZ), LLC | Texas | ||
| PNK (VN), Inc. | Cayman Islands | ||
| President Riverboat Casino-Missouri, Inc. | Missouri | ||
| The Pinnacle Entertainment Foundation | Nevada | ||
| Yankton Investments, LLC | Nevada | ||