Marvel Avengers Alliance was a 2012 turn-based social-network game developed by American studio Offbeat Creations and published by Playdom.
The player can team up with two of 166 Marvel heroes in the game, each with their unique skills and abilities.
Gameplay consists of turn-based fights that pit the player's agent and heroes against one or more waves of three or fewer enemies, with each character having unique attacks.
There are six character classes: blaster, bruiser, scrapper, infiltrator, tactician and generalist.
Blasters have guaranteed critical hits against bruisers and ignore their defense stats.
Special Operations are limited time challenges in which the player has to complete, at least, 25 tasks in order to obtain a new hero.
The Challenges are a set of difficult fights with special conditions and rules which, if completed, earn the player a reward.
recruit, dispatched by Nick Fury and Maria Hill, as an unknown event, referred as "The Pulse" causes a strange material known as Iso-8 to emerge on Earth.
The player is charged with joining various heroes in battle to take down numerous villains who are all aiming to gather and use Iso-8 for their own nefarious purposes.
Season 2 was heavily inspired by the Fear Itself story-line but also contained other details such as Incursions as part of Time Runs Out, that would eventually lead into Secret Wars.
Playdom tried to migrate from it, first by hosting the game on their own page as well, and then by making Marvel Avengers Alliance 2 available only as a cell phone application.
The games were no longer available for new downloads or accept online payments, but were still available for players for a month.
Launched in June 2014, Tactics took the gameplay mechanics built in the original and applied them to an isometric 3D map, with the player choosing four of their agents or heroes for each mission.