This mod pack aims for a very Vanilla feel, besides the fact that it has a few dragons.
Cream = Vanilla, Hope = That you will survive.
"There is Hope that you will enjoy this Mod pack" - Definitely not demomloi
New mobs, structures, and new variants of armour, tools, & weapons.
Exemplars:
Mob images:

Snake in Swamp, Untamed Wilds (raytrace82).


Royal Red (1 & 2), Butterfly Levithan (3), Wyrmroost (Wyrmoost).

Piglin, foxhound, Quark (Vazkii).

Stradler, Stradpole, Alex's Mobs (sbom_xela).

Enderiophage, Alex's Mobs (sbom_xela).

Endergrade, Alex's Mobs (sbom_xela).
Armours & Tools:

Combination of armours, weapons, and horse cart/armour & a gold apple tree, too many mods (NA).
Nether & End:

Crimson forest, Crimson Mosquito, Alex's Mobs (sbom_xela).

Crimson forest, Drop Bear, Alex's Mobs (sbom_xela).

Soul valley, foxhound, wraith, Quark (Vazkii).

End, Spiral spikes, spectre, Alex's Mobs (sbom_xela).

End, Enderiophage, Alex's Mobs (sbom_xela).
Bosses:

Enderdragon

End City, Void Worm, Alex's Mobs (sbom_xela).

Wither

Frost Maw, Barako the sun chief, Ferrous Wroughtnaut, Mowzie's mobs (bobmowzie).

Toad Sentinel, Toad Terror (Cicoda).
Structures:

Nether jungle temple, Repurposed Structures (Forge), (telepathicgrunt).

End city.

Pilligar Factory, Mo's Structures (forge), (ffrannny).

The Castle in the sky Mo's Structures (forge), (ffrannny).
Thank you to all the mod creators that have their mods in this mod pack.
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