The phrase refers to acquiring software or resources that enable users to create custom content related to the popular Angry Birds franchise. This typically involves tools that allow modification of existing game assets or the creation of entirely new levels, characters, or scenarios inspired by the game. An instance would be searching for a program to design a new level using a pre-existing Angry Birds engine.
Accessing such resources provides opportunities for creative expression and modification of a familiar game environment. This can foster skills in game design, programming (if applicable), and digital art. In the past, the availability of such tools was limited to professional developers; however, user-generated content creation has become more accessible to a wider audience, fostering a culture of modding and personalization.