Bless Online (Korean: 블레스, romanized: Beulleseu) was a massively multiplayer online role-playing game developed by Neowiz Games.^[3] The release date was May 28, 2018, for Founder's Pack purchasers and May 30 for Early Access on Steam.^[4] Bless Online uses a free-to-play business model.

Bless is set in a seamless fantasy world. The main story revolves around a decade-long war between two factions, the nation of Hieron and the nation of Unión. The game world is separated by different climatic zones. Players can choose their character's race and class, with race determining which faction they align with. Players can join PvP castle sieges, to advance their faction power. Winning sieges grants new quests, and resources. Faction and race dependent role-playing scenarios are also available for players to advance their character progress.^[5][6]

Bless was initially announced as BLESS, back in 2011.^[7] Bless was developed with Unreal Engine 3, a game engine by Epic Games.^[5][6] Bless' western version was cancelled by game publisher Aeria Games in 2017, however, in response Neowiz plans to self-publish the game.^[8] In July 2017, Neowiz Games announced their Rebuild Project in order to address many game specific components.^[9] At TwitchCon 2017, Neowiz announced that the release date would be sometime in 2018 and that Bless will become available at Steam, as part of the early access program.^[4] Steam's early access included localized versions for English, German and Russian languages.^[10] Two mobile games based on the Bless IP were announced, one using Unreal Engine 4.^[11] As of October 2017, Neowiz Games was still assessing in-game monetization options.^[10] The last remaining server in Korea was shut down on November 19, 2018.^[12]

Bless Online released in Early Access on Steam for Founder's Pack purchasers on May 28, 2018, and Early Access on May 30, 2018. The Steam version closed on September 9, 2019,^[2] with its struggling userbase size cited as a main reason by media outlets.^[19]