One of the coolest parts ofLies of Pis the Legion Arms you’re able to build and modify. These arms are comparable to the prosthetic tools fromSekiro: Shadows Die Twice, and they can give you an edge in a lot of encounters. But since Legion Arms can be so useful, they have their own upgrade station and rare materials. So, here’s everything you need to know about swapping and upgrading Legion Arms inLies of P.
Lies of P: How to upgrade Legion Arms
The very first Legion Arm you’ll get inLies of Pisn’t very special. It’s just a metal arm that you can use to punch enemies. Granted it does a lot of damage at the start, but you’ll get a much better Legion Arm very soon. Speaking to Eugénie in Hotel Krat will reward you with your first proper Legion Arm, thePuppet String. This lets you hook and pull enemies towards you and it’s very cool.
Now in order to upgrade the Legion Arms you’ll need to progress a little further intoLies of P. Specifically, you’ll need to have completed the third area in the game, Venigni Works. Once this is done, Venigni himself will join you at Hotel Krat and set up his workshop just opposite Eugénie. Now you’re able to use the Venigni Craft Machine to switch, craft, and upgrade Legion Arms.

As far as crafting and upgrading the Legion Arms go, it’s a fairly simple process. In order to make new Legion Arms inLies of P, you’ll Legion Plugs. And then to upgrade the arms you need to use Legion Calibers. You’ll find both of these items as you explore the city of Krat. But they’re fairly rare, so think hard before committing to a new upgrade or Legion Arm.
My personal recommendation for a good Legion Arm inLies of Pis the Aegis. This lets you bring up a shield that explodes and deals damage to an enemy that makes contact with it. For defensive purposes, it’s one of the best tools in the game. And it’ll make some fights against tough enemies and bosses much easier.

Lies of Pis now available on PC.
Sam Robins
Sam is a Contributing Writer at PC Invasion. For just over 5 years, he has been writing about all areas of gaming from news and guides, to reviews of the latest titles. When he’s not writing, he’s usually sinking time into an RPG or trying to convince his friends to play The Legends of Heroes series. He can usually be found lurking on Twitter (@GhoolyTV) most days.
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