]> "Games" are random graph generators, i.e. they generate a different graph every time they are called. igraph includes many such generators. Some implement stochastic graph construction processes inspired by real-world mechanics, such as preferential attachment, while others are designed to produce graphs with certain used properties (e.g. fixed number of edges, fixed degrees, etc.)

Preferential attachment models are growing random graphs where vertices are added iteratively, and connected to previously added vertices based on dynamically changing vertex properties, such as degree or time since the vertex was added.

In growing random graphs, vertices are added iteratively, and connected based on various rules. Preferential attachment models are documented in their own section.

Random graph models with hard or soft degree constraints.