How To Install Optifine? You're probably asking yourself, "What is Optifine?" By definition, it's a high-end mod for Minecraft. To begin with, a mod is a downloadable addition to Minecraft. As a result, the Minecraft game software offers the player HD graphics in real time. Furthermore, animated settings result in a really captivating experience. The majority of the time, it also enhances gameplay by providing players with more options for creating lightning effects. As a result, we can say that Optifine is the most significant add-on for Minecraft Forge.