Check the listing for details. Brady Games PC X-COM Terror Deep Unauthorized Strategy Guide Microprose. Condition: Very Good, Made in United States. Listed at 9.99 USD. The Brady Games PC X-COM Terror Deep Unauthorized Strategy Guide is a detailed and comprehensive guide for players looking to conquer the challenges of the popular X-COM game. Written by Brady Games, a trusted brand in video game strategy guides, this guide is specifically tailored for the PC version of the game. With a focus on in-depth tactics and strategies, players can enhance their gaming experience and defeat their enemies with ease. This unauthorized guide provides exclusive tips and tricks that will help players dominate the game and emerge victorious.