Fate Grand Order - Challenge 5: Alien Invasion Walkthrough

Guide to Challenge 5: Alien Invasion of Saber Wars Event (US) 2018. The Challenge 5: Alien Invasion is the fifth daily quest during the Saber Wars Event which involves three waves of battles. Fortunately however, they're all of the Lancer class. Want an easy way to figure it out? Check out our FGO guide!

Challenge 5: Alien Invasion Guide – Walkthrough

The Challenge 5: Alien Invasion is one of the easier Altrium farming quests. As the fifth of the Altrium quests, the Challenge 5: Alien Invasion doesn’t pose too much of a challenge and is well-suited for Sabers. Players can even opt to rely on pure raw power to mince through the incoming enemies.

Need help finding some items finding builds for servants? Check our Fate Grand Order Database here.


AP Cost 10 Bond Point 465
EXP 7815 QP 4900
Tendency Lancer First Reward Homunculus Baby x 3


Enemy Information
Battle 1/3
Altonian (Lvl 30/ Lancer/ 17969 HP) Elite Altonian (Lvl 25/ Lancer/ 54987HP) Altonian (Lvl 30/ Lancer/ 17969 HP)
Battle 2/3
Elite Altonian (Lvl 25/ Lancer/ 54987HP) Altonian (Lvl 30/ Lancer/ 17969 HP) Elite Altonian (Lvl 25/ Lancer/ 54987HP)
Battle 3/3
Elite Altonian (Lvl 25/ Lancer/ 54987HP)  Altonian Jr. (Lvl 40/ Lancer/ 329709 HP) Elite Altonian (Lvl 25/ Lancer/ 54987HP)


Drop Item Information
Ascension Skill Reinforce
Ascension &
Skill Reinforce


  • Enemies are all of the Lancer class which will make this easy for Saber class servants. Since it’s an Altrium farming event, players will most likely be able to get the most Altrium out of the Challenge 5: Alien Invasion quest.
  • For an easy finish of the Challenge 5: Alien Invasion, bring Saber class servants with multiple hit noble phantasms. It’ll make the battles end faster especially at the latter part.
  • If players have high level Saber class servants already then, they won’t need to rely too much on their noble phantasm. The brute force of their Saber class servant should be enough to finish off the enemies in Challenge 5: Alien Invasion.
  • The last stage however is are three homunculus with one major homunculus. Players can opt for a full Saber team to max out the Altrium farming. At the same time, bring servants that have debuffs to make the battle finish up faster. Altera‘s Photon Ray works well here for being a multi-hit while inflicting a defense debuff which makes either Lily or Altria Pendragon also a good follow up. Especially since Altria Pendragon‘s Noble Phantasm can regenerate her NP Gauge if overcharged, placing either her or Lily as the last in the NP chain can definitely put things to your advantage.
  • With a Star of Artoria and maxed out Purely Bloom Craft Essence, you should be able to defeat them easily.

Saber Wars Event US (2018) Altrium Quests

Alien Invasion
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3 4
5 6
7 8
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11 12

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