League's Mod is a Sandbox Modification. Using League's you can pose ragdolls. Using LMod you can build. Take props from HL2 and other games,and weld them together to make walls. Axis a wheel to it to create a working car. Rope some cans to the back. A big contraption creating community has popped up around LMod - creating such things as Rube Goldberg devices, catapults, cannons, bridges etc.. Using LMod you can make your own weapons. That's right, Make your own weapons using one program that is located in: *MODNAME*\lua\GmWM If you're new you can change simple things like rate of fire, models, sounds. If you're awesome the world is your oyster, mass changing guns, melon cannons, jetpacks. LMod gives you the freedom to do any of these things in single player or online with your friends.