Alliance of Valiant Arms (abbreviated as A.V.A, Korean: 아바, romanized: Aba, 简体中文：《战地之王》, 繁體中文：《戰地之王》) is a free-to-play online first-person shooter video game, developed by now-defunct Red Duck, Inc. using Unreal Engine 3.

It is hosted in the People's Republic of China by Tencent Games, and in Taiwan by Garena[1](previously WarTown[2]).

[6] Red Duck, Inc. attempted to self-publish a modified version of the game for these regions called Alliance of Valiant Arms: DOG TAG, launching open beta on May 2, 2019.

Alliance of Valiant Arms awards players military ranks based on total experience (gained through playing various game modes and completing objectives).

In lieu of voice chat, players could quickly issue commands and responses to teammates through keyboard shortcuts.

As a result, A.V.A migrated to En Masse Entertainment in 2016, which continued to provide service for the game in Western regions until June 29, 2018.