Fortnite was initially introduced as "Save the World" in July 2017. This cooperative player-versus-environment (PvE) mode revolved around a world overrun by zombie-like creatures called Husks. Players teamed up to defend against these monsters, scavenging for resources, building structures, and completing objectives. The game's unique blend of crafting, combat, and exploration garnered attention, creating a dedicated player base.

During this phase, "Save the World" introduced players to the iconic building mechanics that would later become a defining feature of Fortnite. The concept of constructing structures on-the-fly to defend against threats laid the groundwork for what was to come.

The real turning point in Fortnite's story came in September 2017 when Epic Games introduced the "Battle Royale" mode. Inspired by the success of other battle royale games, such as PlayerUnknown's Battlegrounds (PUBG), Epic saw an opportunity to adapt their game to this emergent genre. The result was a masterstroke that would propel Fortnite to international stardom.

"Battle Royale" took the essence of the original game – scavenging, building, and survival – and transformed it into a massive online multiplayer experience. A hundred players dropped onto an island, scavenged for weapons and resources, built structures to defend themselves, and fought to be the last person or team standing. This new mode brought a fresh level of excitement, strategy, and intense competition to Fortnite.

The introduction of "Battle Royale" turned Fortnite into a cultural phenomenon. Its vibrant art style, accessibility, and free-to-play model attracted players of all ages and skill levels. Celebrities, athletes, and even non-gamers joined the Fortnite frenzy, participating in dances and emotes popularized by the game. The "Fortnite Dance" became a recognizable symbol of pop culture.

Epic Games continued to innovate, introducing new weapons, limited-time events, collaborations with pop culture franchises, and even in-game concerts. These additions kept the game fresh and exciting, cementing Fortnite's status as a constantly evolving experience.

While "Battle Royale" remained the core focus, Fortnite expanded further. The game introduced "Creative Mode," allowing players to build their own worlds, game modes, and challenges. This unleashed a wave of creativity within the community, fostering a space where players could design their own unique experiences.

Additionally, "Save the World" continued to receive updates and improvements, though it remained overshadowed by the colossal success of the battle royale mode.