Spawn redo
cathaya7d4

Drop-in replacement for default/spawn for more third-party biomes

World Borders
argyle

Add impenetrable barriers to the sides and bottom of the world.

treasures
ademant

Treasure nodes with useful items

golden lava
GigaByte

add golden lava

Floof
Momo

Add BicBiomeCraft inspired biomes, tools, and items.

Dirt Tunneler
Neuromancer

Makes dirt deeper and you can tunnel through it just by walking through it. Press spacebar/shift to tunnel upward/downward with auto placed ladders.

Sun Flowers
Hybrid Dog

This mod generates flowers which close their heads at night.

Mud
Blocky Player

Adds stylish mud blocks and even blocks you can walk through. Setup traps, secret rooms and much more!

Silver
Jackknife

adds silver ore and tools

Too many ores
TeufloV

This adds 53 new ores. But most of them are useless.