Pokémon Go

TL;DR: Pokémon GO is a location-based mobile game, where you walk around real world searching for "PokéStops" and virtual Pokémon to catch and train for multiplayer battles

According To Wikipedia:
"Pokémon GO is a free-to-play location-based augmented reality mobile game developed by Niantic for iOS and Android devices. Making use of GPS and the camera of compatible devices, the game allows players to capture, battle, and train virtual Pokémon whom appear on device screens as though in the real world. An optional companion Bluetooth wearable device, the Pokémon GO Plus, is planned for future release and will alert users when Pokémon are nearby.

After establishing a game account, the player creates an avatar by selecting a hair, skin, and eye color; style; and outfit. After the avatar is created, it is displayed at the player's current location along with a map of the player's immediate surroundings. Features on the map include a number of PokéStops and Pokémon gyms. PokéStops provide players with items, such as eggs, Poké Balls, and potions and can be equipped with items called lures, which attract wild Pokémon. Gyms serve as battle locations for team-based king of the hill matches. These are typically located at places of interest. These locations are re-purposed portals from Ingress, Niantic's previous augmented reality game.

As players travel the real world, their avatar moves along the game's map. Different Pokémon species reside in different areas of the world; for example, water-type Pokémon are generally found near water. When a player encounters a Pokémon, they may view it either in augmented reality (AR) mode or with a live rendered, generic background. AR mode uses the camera and gyroscope on the player's mobile device to display an image of a Pokémon as though it were in the real world. Players can take screen shots of the Pokémon they encounter either with or without the AR mode activated.

Unlike other installments in the Pokémon series, players in Pokémon Go do not battle wild Pokémon to capture them. During an encounter with a wild Pokémon, the player may throw a Poké Ball at it by flicking it from the bottom of the screen up toward the Pokémon. If the Pokémon is successfully caught, it will come under the ownership of the player. Factors in the success rate of capture include the right force, the right time and the type of Poké Ball used. After capturing a wild Pokémon, the player is awarded two types of in-game currencies: candies and stardust. The candies awarded by a successful catch depends on what evolutionary chain a Pokémon belongs to. A player can use stardust and candies to raise a Pokémon's "combat power" (CP). However, only candies are needed to evolve a Pokémon. Each Pokémon evolution tree has its own type of candy which can only be used to evolve or level up. The player can also transfer the Pokémon back to the Pokémon professor to earn one more candy and create room for more Pokémon. The ultimate goal of the game is to complete the entries in the Pokédex, a comprehensive Pokémon encyclopedia, by capturing and evolving to obtain the original 151 Pokémon."

Pokémon GO gameplay/walkthrough (Gameplay uploaded by HeroVoltsy):


Part 2 in case the first part was too vague (Also uploaded by HeroVoltsy):

 

Wow, you replied quick!

 

Been trying to level up, but the game doesn't even work 95% of the time...