Sega Dream was renamed Index Corporation in November 2013 and gained possession of Atlus' name and intellectual properties.

It adopted the name of Index by 1997 and expanded into one of Japan's most successful companies, with acquisitions into several communications and entertainment ventures, including the anime studio Madhouse, game companies Atlus and Interchannel, and major movie studio Nikkatsu.

In June 2013, following investigations for fraud, Index Corporation was forced to file for civil rehabilitation bankruptcy.

[4][5] On June 27, 2013, following an investigation for fraud,[6] Index Corporation filed for civil rehabilitation bankruptcy due to a debt consisting of 24.5 billion yen.

[7][8][9] On September 18, 2013, it was reported that Sega Sammy Holdings had won a bid to acquire Index for 14 billion yen.

The sales covered fixed assets and intellectual property assets of the announced operations, which included Atlus Holding, Inc. (parent company of Index Digital Media, Inc.), Tiger Mob Limited, Index Corp (Thailand) Ltd., Mobi Town Ltd.

Once Index Corporation Thailand Ltd. was amalgamated with Mobi Town Ltd., and Tiger Mob Ltd., the company was re-branded as Index Asia Ltd.[21] They are a subsidiary of iXIT Corporation that provides mobile software application, licensing and application development services within Thailand.