The Source code for Project-Lambda, an ambitious project aiming to re-create the classic shooter masterpiece, Half-Life, often debated to be the best game of all time that revolutionized its genre, in Minecraft. It is a complete rewrite and overhaul of LambdaCraft, permission for which was kindly granted by its owner KSkun.
CurseForge: https://minecraft.curseforge.com/projects/project-lambda
Minecraft Forum: https://www.minecraftforum.net/forums/mapping-and-modding-java-edition/minecraft-mods/2940643-project-lambda-half-life-in-minecraft