The Undergate Alienevo Addon Mod (1.20.1)
Undergate Alienevo Addon Mod extends Alien Evolution with the Demogorgon from Stranger Things and Dead by Daylight. This mod adds a new dimension called the Upside Down, rare lab structures, and scary monsters to fight. Players can hunt down monster parts to unlock the Demogorgon transformation for their Omnitrix.

Features:
- Demogorgon Transformation: Unlocks a playable Demogorgon form for your Omnitrix after scanning the required item.
- The Upside Down Dimension: Adds a dark dimension that works well for farming XP for your aliens.
- Hawkins Lab Structure: Generates a rare laboratory in plains biomes containing loot and a portal to the Upside Down.
- Spawns hostile Demogorgons and Demodogs inside the Upside Down that drop Demogorgon limbs.
- Lets players cook Demogorgon limbs in a furnace or on a campfire to get cooked flesh.
- Makes pigs drop hearts when killed for crafting recipes.
- Adds Vecna’s Fake Eye as a craftable item used to unlock the new alien form.
How to Use:
- Explore plains biomes to find the rare Hawkins Lab structure and enter the portal to the Upside Down.
- Defeat Demogorgons or Demodogs inside the dimension to collect Demogorgon limbs.
- Cook the limbs in a furnace or on a campfire to get cooked flesh.
- Kill pigs in the Overworld to gather pig hearts and collect some Ender Eyes.
- Combine the cooked flesh, pig hearts, and Ender Eyes to craft Vecna’s Fake Eye.
- Hold Vecna’s Fake Eye in your base form and press Right-Click to scan it with your Omnitrix and unlock the Demogorgon.