Angry Birds:Angry Builders

Angry Builders is an entry in the Angry Birds series developed by Rovio and released on all current mobile and PC platforms. As a celebration of the franchise's 15th anniversary this game not only featured all playable birds and pigs from all the mainline games up to that point, but had the main selling point of building and sharing levels across the internet. Despite this the game also launched with a campaign mode where level packs were based off levels submitted by other players in a contest. The game was a massive hit being the most downloaded Angry Birds game of all time and being praised for its simplicity but depth of the level builder.

Gameplay
Angry Builders as stated previously features a level builder as the main focus of the game. At the start players are introduced to the concept of level building by re-creating the very first level from the original Angry Birds, followed by Leonard and his cronies messing it up and introducing the campaign mode. Level creation is made by using the touch screen to drag and drop object onto a grid. Objects can be rotated and lengthened, which also affects the properties of certain objects as well. Each level requires a goal, what and where the pigs will be, and the selection of which birds will be slingshot in which order. At frist you can only use the original flock members (Red, Chuck, Matilda, Bomb, and the Blues) but you can unlock other birds by completing episodes in the campaign mode.


 * The other members of the flock (this includes Bubbles, Stella, Terence, Hal, and Silver) are unlocked by completing Episode 1 (Big Setup)


 * Frost and Tony are unlocked by beating the two Egg-durance stages of Episode 2 (Cold Cuts)


 * The flock debuting in Angry Birds Stella (Poppy, Luca, Willow, and Dahlia) are unlocked by completing Episode 3 (Nature Retreat)


 * The pigs (Leonard, Courtney, and Garry) are unlocked by completing certain levels in Episode 5 (New Pig City)


 * Gale is unlocked by completing Episode 8 (Gale's Gilded Fortress)


 * Zeta is unlocked by completing the secret episode (Eagle Island)

To officiate a level, one must complete it using the birds and items given to them. After that the score needed to rack up stars is scaled based on the maximum score you could collect from the stage based on the amount of destructible parts in the level. When officiated the level can be published and played by other players on the servers. While these levels can be completed to gain the classic three gold stars, they don't actually do anything when collected, rather if the level gets verified by an admin of the server based on a number of factors (good structure design, good and balanced selection of birds, etc) those stars become blue. Blue stars can be used to buy costumes for your birds to show off on your profile and new pigs to place as enemies. Blue stars can also be completed by beating levels in the campaign.