Minecraft modded. Today we do some more building around the coke oven project. Then we have some fun trying out Immersive Engineering's Chemical Thrower, Rail Gun, and Revolver weapons as we take on a maze in the Twilight Forest. Mod Pack Instructions - #1: Download FTB Launcher #2: From the launcher select "Pack Code" under "3rd Party Packs" #3: Enter the code "Etho" #4: Launch the Etho Pack that should now be in your "3rd Party Pack" list. FTB Launcher:.