Exhibit 8.1

List of Subsidiaries of the Registrant

• Changyou.com (HK) Limited, incorporated in Hong Kong.

• ICE Entertainment (HK) Limited, incorporated in Hong Kong.

• Beijing AmazGame Age Internet Technology Co., Ltd., incorporated in the PRC.

• Beijing Changyou Gamespace Software Technology Co., Ltd., incorporated in the PRC.

• ICE Information Technology (Shanghai) Co., Ltd., incorporated in the PRC.

• Beijing Yang Fan Jing He Information Consulting Co., Ltd., incorporated in the PRC.

• Shanghai Jingmao Culture Communication Co., Ltd., incorporated in the PRC.

• Beijing Changyou Jingmao Film & Culture Communication Co., Ltd., incorporated in the PRC.

• Shanghai Hejin Data Consulting Co., Ltd., incorporated in the PRC.

• Changyou.com (US) LLC, formed in the United States.

• Changyou.com (UK) Co., Ltd., incorporated in the United Kingdom.

• Changyou My Sdn. Bhd, incorporated in Malaysia.

• Changyou.com Korea Limited, incorporated in South Korea.

• Changyou.com India Private Limited, incorporated in India.

• Changyou.com Gamepower (HK) Limited, incorporated in Hong Kong.

• Changyou.com Webgames (HK) Limited, incorporated in Hong Kong.

• 7Road.com Limited, incorporated in the Cayman Islands.

• 7Road.com HK Limited, incorporated in Hong Kong.

• Shenzhen 7Road Network Technologies Co., Ltd., incorporated in the PRC.

• CHANGYOU BİLİŞİM HİZMETLERİ TİCARET LİMİTED ŞİRKETİ, incorporated in Turkey.

• Kylie Enterprises Limited, incorporated in British Virgin Islands.

• Changyou.com Gamestar (HK) Limited, incorporated in Hong Kong.

• Heroic Vision Holdings Limited, incorporated in British Virgin Islands.

• Mobogarden Enterprises Limited, incorporated in British Virgin Islands.

As of the date of this annual report, we also own, through Heroic Vision Holdings Limited, the following subsidiaries:

• TalkTalk Limited, incorporated in British Virgin Islands.

• RaidCall (HK) Limited, incorporated in Hong Kong.

• Beijing Changyou RaidCall Internet Technology Co., Ltd., incorporated in the PRC.