Minecraft Forge is a library for Minecraft, which is the main for most mods. By default, only teams and datapacks can add new features to the game, but with the help of forge it is possible to modify the game using third-party mods.
Forge Mod for Minecraft 1.15.1/1.15
Forge for minecraft gives mod developers almost unlimited possibilities for changing the game, they can add new blocks and mobs, items, measurements and much more.
1.15.1 – forge_1.15.1_30.0.30_installer
1.15 – forge_1.15_29.0.4_installer