rating system. Hundreds of knockoffs are widely popular in the mid-to-late 1990s. Doom (1993) bursts onto the world scene, and instantly popularizes the FPS genre. Half-Life (1998) builds upon this, using gameplay without levels and an immersive first-person perspective. Half-Life became one of the most popular FPS games in history. The real-time strategy (RTS) genre is introduced in 1992 with the release of Dune II. Warcraft: Orcs & Humans (1994) popularizing the genre, and Command & Conquer and Warcraft II: Tides of Darkness in 1995, setting up the first major real-time strategy competition and popularizing multiplayer capabilities in RTS games. StarCraft in 1998 becomes the second best-selling computer game of all time. It remains among the most popular multiplayer RTS games today, especially in South Korea. Homeworld in 1999 becomes the first successful 3D RTS game. The rise of the RTS genre is often credited with the fall of the turn-based strategy (TBS) genre, popularized with Civilization in 1991. Final Fantasy was introduced (in North America) in 1990 for the NES and remains among the most popular video game franchises, with many new titles to date and more in development, plus numerous spin-offs, sequels, films and related titles. Final Fantasy VII, released in 1997, especially popularized the series. Massively multiplayer online role-playing games (MMORPGs) see their entrance with Ultima Online in 1997. However, they do not gain widespread popularity until EverQuest and Asheron's Call in 1999. MMORPGs become among the most popular video game genres until the 2010s. Pokémon enters the world scene with the release of the original Pokémon Red and Pokémon Green for Game Boy in Japan in 1996, later changed to Pokémon Red and Pokémon Blue for worldwide release in 1998. It soon becomes popular in the United States and Canada, creating the term Pokémonia, and is adapted into a popular anime series and trading card game, among other media forms. Resident Evil is released in 1996. It will become the most popular survival-horror series in video gaming into the next decades. The best-selling games of the 1990s are listed below (note that some sources disagree on particular years): 1990: Super Mario World 1991: Sonic the Hedgehog 1992: Super Mario Land 2: 6 Golden Coins 1993: Super Mario All-Stars 1994: Donkey Kong Country 1995: Super Mario World 2: Yoshi's Island or Mortal Kombat 3 1996: Pokémon Red and Blue or Super Mario 64 1997: Gran Turismo or