This poster presents a Diffusion-Limited Aggregation (DLA) model in the context of crystallization. The DLA model describes how particles randomly diffuse until they come in contact with the existing cluster. The underlying physics that creates DLA is Brownian motion, which is simulated stochastically through random walks. This model explores the formation of crystal structures through dendritic solidification. Dendritic solidification is a process where a liquid cools and forms a solid with tree-like patterns, known as dendrites. This principle is fundamental in forming naturally occurring patterns and structures, such as metal castings and ice crystals. By understanding how dendrites form, the microstructures of these materials can be optimized for improved mechanical properties such as strength and durability. With this model we demonstrate how changes in expansion rate and particle fusion probability affect the structural integrity of dendritic materials.