Ben 10 Addon (1.21+) – Omni Legends Mod

Ben 10 Addon (1.21+) (also called Omni Legend Addon or Ultimate Alien Addon) is a free addon created by Indonesian developer @yog4085. It brings the Ultimatrix (Ben 10’s ultimate Omnitrix) into your game so you can transform into classic aliens with full animations, custom powers, ultimate forms, and survival-friendly features. It’s still in alpha but already very playable.

Features:

• Transformations – Craft the Ultimatrix and switch into 5 aliens + their Ultimate versions with smooth Ben 10-style animations.
• Aliens Included:
  • Swampfire (Ultimate)
  • Humungousaur (Ultimate)
  • Big Chill
  • Echo Echo (Ultimate)
  • Alien X
• Unique Skills – Each alien has special attacks activated by specific controls (e.g., Swampfire fire blasts = Skill 2 + look down; Alien X has reality-warping moves; Humungousaur charge attacks, etc.).
• Extra Mechanics – Master Control, Self-Destruct mode, failsafe system.
• Survival Structures – Alien ruins (80% spawn rate), Galvan pods (10%), crashed alien ships (10%), and Galvan bases (10%) that generate naturally.
• Custom Blocks, Crafting & Sounds – Full Ben 10 theme with particles, effects, and classical instrumental music.

Screenshots:

Equipping the Ultimatrix from the inventory

Transformation into Swampfire

Showcasing Swampfire’s fire blasting abilities

Evolution into Ultimate Swampfire with blue flames

Transformation into the massive Humungousaur

Evolution into Ultimate Humungousaur with arm cannons

Demonstrating Ultimate Humungousaur’s missile attack

Transformation into Big Chill and taking flight

Evolution into Ultimate Big Chill

Using Ultimate Big Chill’s fiery ice breath

Transformation into Echo Echo

Evolution into Ultimate Echo Echo

Deploying Ultimate Echo Echo’s sonic disks

Using the DNA Maker to create Alien X DNA

Transformation into Alien X and demonstration of god-like powers

Installation Note:

• You need to enable the Experimental Settings if the addon does not work properly.

Ben 10 Addon Download Links

For Minecraft PE/Bedrock 1.21+

mcaddon: Download from Server 1 – Download from Server 2