Heart Survival

Heart Survival is basically a revamped version of Skyblock, but with a bit more sand and dirt! (Also now the sand is safe from falling to it's doom in an instant with sandstone underneath.) You can use any version of minecraft that contains these items :

Grass
Sand
Sandstone
Chests
Oak Logs
Oak Leaves
Dirt
Cactus

Lava Bucket
Ice
Birch Sapling
Brown Mushroom
Red Mushroom
Reed
Melon
Pumpkin Seeds

Since the whole entire world is in a void biome no mods can spawn, sorry about that...