[3] After Zynga closed its Boston studio in October 2012, Seth Sivak and four other former developers at Boston Zynga formed a new independent studio, Proletariat Inc.[2] The company's first major release was World Zombination, a horde-based real-time strategy mobile game.

[5] Alongside funding, Take-Two Interactive's head of corporate development and independent publishing, Michael Worosz, joined Proletariat's board of directors in 2019.

[7] The company then developed Spellbreak, a free-to-play multiplayer action spellcasting game released on Microsoft Windows, PlayStation 4, Xbox One and Nintendo Switch in 2020.

[8] In June 2022, Proletariat, Inc. announced that the company will end development of Spellbreak and shut down the game servers in 2023.

[9] The next day, Blizzard Entertainment announced they had entered into an agreement to acquire Proletariat, Inc., and the studio will be assigned to work on World of Warcraft, beginning with the ninth expansion, Dragonflight.