Information: - PopTop Software was an American video game developer. It was known as the publisher of several strategy games including "Railroad Tycoon II" (1998) and the Caribbean island simulation "Tropico" (2001). - Linux (pronounced or, less frequently) is a Unix-like computer operating system assembled under the model of free and open-source software development and distribution. The defining component of Linux is the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. The Free Software Foundation uses the name GNU/Linux to describe the operating system, which has led to some controversy. - Sid Meier 's Railroads ! is a business simulation game developed by Sid Meier on the Gamebryo game engine that was released in October 2006 and is the sequel to Railroad Tycoon 3 . Although Sid Meier created the original Railroad Tycoon , subsequent versions were developed by PopTop Software . After a visit to Miniatur Wunderland in Hamburg , Germany , Sid Meier was inspired to reinvent his original creation . A version for the Mac OS X was published by Feral Interactive on November 1 , 2012 , under the latter 's Feral Legends label . - NCsoft, stylized as NCSOFT, is a South Korea-based online, video and mobile game development company that has produced "Lineage", "City of Heroes", "WildStar", "Guild Wars", "", "Blade & Soul", and "Master X Master". - Feral Interactive is a video games publisher for Mac OS X and Linux platforms. It was founded in 1996 and is based in London, UK. Feral Interactive works with publishers such as Square Enix, 2K Games, Sega, Warner Bros. Interactive Entertainment and Codemasters. Feral develops and publishes ports of its partners' popular games including the "Total War" series, "", "Tomb Raider" and "". - Tropico is a construction and management simulation video game developed by PopTop Software and published by Gathering of Developers in April 2001. Feral Interactive has developed and published a number of the games in the series for Mac OS X. The games see the player taking the role of "El Presidente", the ruler of an island in the Caribbean during the Cold War era from the 1950s onward. - WB Games Inc., doing business as Warner Bros. Interactive Entertainment (WBIE), is a division of Warner Bros. and a leading publisher, developer, licensor and distributor of entertainment content for the interactive space across all platforms, including console, handheld, mobile and PC-based gaming for both internal and third party game titles. - Railroad Tycoon II is a train and business simulation video game for Microsoft Windows, Mac OS, PlayStation and Dreamcast in the "Railroad Tycoon" series. The Dreamcast version is a Gold Edition with improved graphics and gameplay. "Railroad Tycoon II: Gold Edition" was ported to Linux by Loki Software. - Tencent Holdings Limited is a Chinese investment holding company whose subsidiaries provide media, entertainment, internet and mobile phone value-added services and operate online advertising services in China. Its headquarters are in Nanshan District, Shenzhen. - Gamebryo is a game engine. Gamebryo 3D and LightSpeed engines are owned by Gamebase Co., Ltd. and Gamebase USA and have been used by several video game developers including Atlus, Trion Worlds, 2K Games, Disney, Ubisoft, Bethesda Softworks, Firaxis Games, Tencent, Sony, Shanda, NCsoft, Rockstar Games and KingsIsle Entertainment for numerous cross-platform game titles. Given the information above, choose from the list below the object entity that exhibits the relation 'platform' with the subject 'sid meier's railroads!'. Choices: - handheld - internet - linux - mac os - microsoft windows - mobile game - mobile phone - os x
microsoft windows