Own idea: make something like in old mods and add more adventures to this game)
New plants:
Flame mushroom(generate near fire, drops flame seeds, blaze powder and flame).

New Items:
Flame burn 16 items.
Fire ball capsule
Cluster - drops from desert golem
Flame seeds (right click to plant flame mushroom).
Star Flame -infinity fuel and fire
Exp chest - shift RC to give exp to chest and RC to take exp from it
Health totem - RC to heal

New Weapons:
Flame bow - shots five fire arrows.
Olonite tools and bow
Flame sword - 7 attack damage, burn mobs.

Fly sword - 6 attack right click to move by X and Y
Wither scythe - shoot wither skulls turns undead to wither skeletons, can mine wood
Levitation sword - right click to levitate and click again to stop it
Mothra - mobs go to sky after attack
Ice knife - right click to freeze water under you
Honey wand - right click to heal yourself
Packed Ice knife - right click to freeze water/lava under you

Now mobs can drop hearts
hearts heal you when you pick up them

New Bosses:
Phoenix
How to spawn - RC golden seeds on phenix egg

Mobs:
Frojer - villager, spawns in swampland
Fairy - spawns in plains
Nether spider spawns in nether(3 sizes)
Ugly pig spawns in nether
Desert Golem -spawns in desert
Big owl in dungeon spawns in taiga
right click with 64 melon seeds to get gold seeds
Soulfish
Withered ZombiePig

Textures, ideas and code by Gosha Krylia.

Example Worlds