Pokémon GO is a location-based augmented reality game developed by Niantic and the Pokémon Company. The game was released for mobile devices in 2016 and has since become a global phenomenon, attracting millions of players worldwide.

In the game, players use their mobile devices to explore the real world and catch virtual creatures known as Pokémon. The game uses the player's GPS location to generate a map of their surroundings, showing nearby Pokéstops, training grounds and wild Pokémon.

Players can collect Pokéballs used to catch wild Pokémon and can also hatch eggs containing new Pokémon by walking certain distances. As players progress through the game, they can train and evolve their Pokémon, battle with other players on the training grounds, and participate in special events.

The playability of the game is driven by the exploration aspect, as players are encouraged to go out and discover new locations in their community while searching for Pokémon. The social aspect is also a major factor as players can work with others to defeat powerful gym leaders and trade Pokémon with friends.

Pokémon GO has become a cultural phenomenon, inspiring players to get out and explore their communities and connect with others while catching their favorite Pokémon, and here are some of the game's key features.

1. Catch Pokémon. Players can explore the real world, find Pokémon in the wild, and use their phones to catch them with Pokéballs. Different types of Pokémon are more likely to be found in specific environments, such as water-type Pokémon near bodies of water.

2. Training grounds and battles. Players can battle their Pokémon in training grounds located in real-world landmarks and buildings. Winning battles in the Training Grounds can help players earn rewards and improve their level.

3. Trading. Players can trade their Pokémon with other players nearby or far away to complete their collection or obtain more powerful Pokémon.

4. Raids. Players can team up with other players to battle powerful Pokémon known as raid bosses. Winning a raid battle can earn players rare rewards and the chance to capture the raid boss's Pokémon.

5. Eggs and Hatching: Players can collect eggs by visiting PokéStops and then hatch them by walking a certain distance. These eggs may contain rare Pokémon or special items.

6. Events. The game regularly hosts special events, such as increased spawn rates for certain types of Pokémon or exclusive raids that offer unique challenges and rewards.

Overall, Pokémon GO offers a wide range of features that encourage players to explore their surroundings and interact with others as they capture and fight virtual creatures.