Grand Chase (Korean: 그랜드체이스, lit. Grand Chase) was a free-to-play, two-dimensional side-scrolling MMORPG developed by the South Korean company KOG Studios.
Alternate names for Grand Chase include 3小俠 (Chinese: lit. Three Young Heroes) used on the Taiwan server; however, it has now been changed to 永恆冒險 (Eternal Adventures). Another name used previously was 彩虹骑士 (Rainbow Warriors) by the Chinese (Mainland) server. The reopening of the Chinese (Mainland) server will also use the name of the Taiwan and Hong Kong Server.
As of April 15th, the game has ceased development and terminated its service worldwide, with the North American server being the last to close.

Gameplay

Due to the combos and special attacks, the game has a feel that is similar to side-scrolling fighting games such as Double Dragon, while the appearance and design of the backdrops, as well as the characters and monster, puts the game in an anime-esque setting. While it is an action game, the designers took care to not make a "button masher".^[1]
The game is free-to-play, where players need to earn currency known as Game Points (GP) from completing dungeon quests, individual missions, or defeating other players to buy better equipment and items, but there are some items that can only be purchased with real-world currency. In Grand Chase, players start off role-playing as one character of their choosing and can make three other characters. Players are able to make more than four characters but are required to buy additional character slots. However, the player may freely switch among the characters he or she has unlocked before entering combat, each with their own specific equipment, skills and experience level.^[2]

Experience

After each expedition into a dungeon, characters gain experience points. While the amount of experience gained is partially dependent on the player's performance in a dungeon, and the player's character's level, every player will gain some experience. The player's character is also given additional experience upon the completion of every mission. When sufficient experience is obtained, the player's character will advance by one level. Higher levels improve statistics and grant access to better equipment. Experience can also be gained through player versus player.

An in-game screenshot of the player's selected character attacking a boss monster.

Dungeon Mode and Parties

When entering a dungeon, a player may form a group of players, to complete it. When choosing a dungeon to play, the player is given the option to create a party of their own or join one created by another player. Each dungeon consists of a certain number of floors, or levels, usually with a boss on the final floor.
Items needed to complete quests will automatically be given to the player at a certain rate after the monster is defeated by any member of the party. All other items are distributed to different party members by a "dice" system. When an item is picked up by any party member, each member of the party rolls their own set of dice. The player with the highest number wins the item. The size of the inventory can be increased, which can be acquired by purchasing with Cash or through some Events. To encourage group play, there is a slight experience boost when working together. Because each party has a maximum limit of four players, and each player may freely choose whichever character he or she wants to use.

Relay Dungeon

The Relay Dungeon can be entered the same way as a normal dungeon. Up to 4 players may form a party and attempt the Relay Dungeon together. In the Relay Dungeon the player fights through every boss on the Continent in order. The bosses in the Relay Dungeon have increased statistics, making them harder to defeat. After a boss is defeated, a chest opens, which contains many valuable items, including Cash items. Any boss that has been released in a dungeon can be chosen. This mode is only available during certain events.