This is a modpack that consists of all the mods (that I know of currently) and APIs needed to play along with season 4 of Ya Dead, Ya Dead.

Dynamic Surroundings - OreCruncher - Alters visual and audio surrounding. Highly customizable.

Dynamic Trees - ferreusveritas - Makes trees behave more naturally.

Exotic Birds - ThePavoReality - Adds a ton of birds to the game.

Hwyla - TehNut - A cosmetic mod. Customizable.

JourneyMap - techbrew - Real-time map in game or in a web browser.

OreLib - OreCruncher

Pam's HarvestCraft - pamharvestcraft - Adds to Minecraft's food system.

U Team Core - HyCraftHD - Child mod for Useful Backpacks

Useful Backpacks - HyCraftHD - Adds backpacks for extra space.

Wawla - What Are We Looking At - DarkhaxDev - Adds infor to the HUD.

Weather, Storms & Tornadoes - Corosus - Adds rain and storms that can evolve into deadly tornadoes.

CoroUtil - Corosus - Child mod.

Just Enough Items (JEI) - mezz - Changes the UI for crafting and recipes.

AH YDYD4