Starfield A Legacy Forged | Should You Pick the Aceles or Microbe?

Choose the fate of the Terrormorphs.

by Thomas Cunliffe
Screenshot: Attack of the Fanboy

You’ve uncovered an intergalactic conspiracy and discovered the mystery of the Terrormorphs’ origin. It’s now time to channel your inner Ripley and decide how to deal with those pesky aliens once and for all. In Starfield’s A Legacy Forged mission, players must choose between the Aceles and Microbe methods to wipe Terrormorphs from existence — but which choice is the best?

Should You Choose to Restore the Aceles or Deploy Microbes in Starfield?

Screenshot: Attack of the Fanboy

Your choice to deal with the Terrormorph threat during A Legacy Forged only affects a few optional lines of dialogue during the game’s final campaign mission. Your Companion may also like or dislike your choice, depending on who’s tagging along with you.

Being the animal lover I am, I chose the Aceles option during my first playthrough. Unfortunately, my to-be wife, Sarah Morgan, disapproved of my decision. Despite her disdain for space dinosaurs, we had a reassuring talk at The Lodge about my decisions on alien extermination: y’know, average couple things.

From our team’s experience, Sarah and Barrett prefer the Microbe option, while Sam and Andreja favor the slow but secure Aceles route. If you plan to romance any of these characters, appeasing their preferences is a good idea.

Related: You Can Dress Your Starfield Companions in Swimsuits, If That’s Your Thing

The most important choice during this quest is whether or not you expose Vae Victus to the cabinet. We won’t spoil it here, but choosing carefully can unlock new quests with incredible rewards.

How Does Choosing the Aceles or Microbe Affect Starfield’s Ending?

WARNING: The remainder of this article contains major spoilers for Starfield’s main campaign.

During Starfield’s final mission, players enter the Unity, and their universe’s (potential) future is revealed. The visions you see in Unity are based on the significant choices you’ve made in your universe and typically serve as conclusions to faction questlines.

Screenshot: Attack of the Fanboy

In both possible conclusions, terrormorphs are wiped from the universe. Whether you decided to fashion a brand new virus or bring back a near-extinct species, those extraterrestrial pests are no more, thanks to Hadrian and her team.

Where to next, Captain? Perhaps a job with Ryujin Industries? You’ll need to furnish your fancy new apartment somehow.

This guide was written while playing Starfield on Xbox Series X.

- This article was updated on September 11th, 2023

About The Author

Thomas has been a freelance writer since 2021 and considers himself a connoisseur of all things Nintendo, Blizzard, and Marvel. Since amassing 145,000+ followers on a Facebook page about Diddy Kong with a backward hat in 2015, Thomas has become a trusted voice in the gaming community across publications such as AOTF, PC Invasion, and Gfinity. His greatest achievements include catching every Pokémon, completing every quest in World of Warcraft (yes, all of them), and naming his dog 'Mass Effect 3.' Thomas is extraordinarily passionate about the video game industry and its community. He enjoys writing about various topics, including popular games like Destiny 2, Fortnite, and WoW, and exploring the latest AAA and indie titles.