"Before the open worlds of a World of Warcraft, a Grand Theft Auto, or a Skyrim, there was the intimidating land of Hyrule. The Legend of Zelda has done more than shape the series as it's known today. It is known for influencing many of today's best games and its formula has inspired many of today's most recognizable game developers, both in the mainstream and indie space". Liz Finnegan for The Escapist commented on the original game's influence on the RPG genre, particularly its nonlinear open world, and opined, "Zelda's design inspired countless other titles to adopt the action-adventure-exploration hybrid with a top-down perspective and expansive, cohesive overworld. These games have long since been informally dubbed "Zelda clones". Christian Donlan of Eurogamer noted the similarity and influence that Hyrule had on Dark Souls, comparing both kingdoms: "In the original Legend of Zelda, however, Hyrule feels, well, a bit more like Lordran - a place of scarred earth and wasteland, parched and rugged and filled with horrible creatures that erupt from the sands or move in staggering hops". The original game was a phenomenal commercial success for Nintendo, selling over 6.5 million copies, and has been described by many critics as one of the greatest video games of all time. USGamer'''s Nadia Oxford commented on the significance of Ocarina of Time and considered it to be "a genius work of game design". She stated: "It brought the traditionally top-down series into a fully 3D realm while successfully preserving the heart and soul of previous Zelda games. Its "Z-targeting" mechanic refined the clumsy auto-targeting systems that made 3D console games of the day feel inferior to 3D action games on the PC. Finally, it presented a story about healing a broken world". Heather Alexandra writing for Kotaku remarked on the impact of the game's release: "There have been countless open world games since 1998, but Ocarina of Time was the moment when the concept of massive, interconnected worlds began to really crystalize". Keza MacDonald of The Guardian also commented on the influence of Ocarina of Time, noting that it was one of the first real 3D adventures and that it "remains eminently playable today because so many of the things it invented became standard for any 3D game that came after it". Tom Power of Gamesradar opined that the game is often considered to be the greatest video game due to its