World of Warcraft
"World of Warcraft" was first announced by Blizzard at the ECTS trade show in September 2001. Released in 2004, development of the game took roughly 4–5 years, including extensive testing. The 3D graphics in "World of Warcraft" use elements of the proprietary graphics engine originally used in "Warcraft III". The game was designed to be an open environment where players are allowed to do what they please. Quests are optional and were designed to help guide players, allow character development, and to spread characters across different zones to try to avoid what developers called "player collision". The game interface allows players to customize appearance and controls, and to install add-ons and other modifications.
Heroes of the Storm
Heroes of the Storm is a multiplayer online battle arena video game developed and published by Blizzard Entertainment for Microsoft Windows and macOS, which released on June 2, 2015. The game features heroes from Blizzard's franchises including "Warcraft", "Diablo", "StarCraft", "The Lost Vikings", and "Overwatch". The game uses both free-to-play and freemium models and is supported by micropayments, which can be used to purchase heroes, visual alterations for the heroes in the game, and mounts. Blizzard does not call the game a "multiplayer online battle arena" or an "action real-time strategy" because they feel it is something different with a broader playstyle; they refer to it as an online "hero brawler". At the end of 2018, Blizzard announced that game was being transitioned to a long-term support plan, with some staff members moved to other projects and its official tournament circuit cancelled.