ASCA A SPAC I Acquisition Corporation

Ameristar Casinos, Inc. (NASDAQ: ASCA) plans to release its first quarter 2013 financial results the week of April 29, 2013. No conference call will be held.

About Ameristar Ameristar Casinos is an innovative casino gaming company featuring the newest and most popular slot machines. Our 7,100 dedicated team members pride themselves on delivering consistently friendly and appreciative service to our guests. We continuously strive to increase the loyalty of our guests through the quality of our slot machines, table games, hotel, dining and other leisure offerings. Our eight casino hotel properties primarily serve guests from Colorado, Idaho, Illinois, Indiana, Iowa, Kansas, Louisiana, Mississippi, Missouri, Nebraska and Nevada. We began construction on our ninth property, a casino resort in Lake Charles, La., in July 2012, which we expect will open in the third quarter of 2014. We have been a public company since 1993, and our stock is traded on the Nasdaq Global Select Market. We generate more than $1 billion in net revenues annually.

Visit Ameristar Casinos' website at www.ameristar.com (which shall not be deemed to be incorporated in or a part of this news release).

CONTACT: Tom Steinbauer Senior Vice President, Chief Financial Officer Ameristar Casinos, Inc. 702-567-7000