Your Cleanse Walker (called Bauera) is the backbone of everything you do in Beast of Reincarnation. It's your home base, your companion hub, and the only thing standing between you and fully upgraded weapons. The catch is that weapon upgrades are gated behind Bauera's level, so if you're hitting a wall with gear progression, the Cleanse Walker is almost certainly the bottleneck. Here's exactly how to push those levels up as fast as possible.
What resources does the Cleanse Walker need to level up?
Three distinct components feed into Bauera's progression, and each one powers a different upgrade category:
You need all three to keep every upgrade category moving. Neglecting one means certain enhancements will stall out even if the other two are maxed, so treat them as equally important from the start.
Three core upgrade components
Where to find Generator Devices, Electronic Brains, and Memory Chips
The good news is that none of these components are rare. The open world is loaded with them once you know what to look for.
Dead and rusted Golems
Golems are your best consistent source. When you take one down, check the remains carefully. Dead and rusted Golems scattered across the world (not just the ones you fight) also yield components, so treat every mechanical wreck you pass as a potential loot opportunity.
Ruins and mechanical structures
Anything that looks like it belonged to the old world's infrastructure is worth investigating. Mechanical ruins, abandoned facilities, and anything with exposed machinery tends to contain strongboxes and loose containers packed with upgrade components. If it looks like it once had power running through it, check it.
Strongboxes hold all three types
General exploration
Components also drop from standard enemies as you explore. There's no single farming route that beats simply pushing forward through new areas, clearing enemies, and looting everything in sight. The density of components in the world means focused exploration will keep your Bauera levels climbing without any dedicated grinding sessions.
Does upgrading the Cleanse Walker require manual input?
No. This is one of the more player-friendly systems in the game. Every time you return to Bauera with Generator Devices, Electronic Brains, or Memory Chips in your inventory, the vehicle automatically absorbs them and applies the upgrades. There's no crafting menu to navigate or confirmation screen to click through. You just come back from a run and the progress happens.
This means you can focus entirely on exploration and combat without worrying about managing an upgrade queue. The system rewards active play rather than menu management.
Upgrades apply automatically
How long does it take to max out Bauera's levels?
Expect several hours of play before hitting the highest upgrade tiers. The component supply is generous, but the volume required for top-tier unlocks means this is a mid-to-late-game milestone for most players. Consistent exploration rather than backtracking through cleared areas is the fastest path forward.
If you want to squeeze more efficiency out of your runs, check out the guide on best ways to earn more Amber since Amber feeds into other progression systems that complement your Cleanse Walker upgrades. Keeping your characters healthy during long farming sessions is just as important, so the best ways to get more food guide is worth a read before heading out on extended runs.
Quick reference: Cleanse Walker leveling summary
- Collect Generator Devices (blue), Electronic Brains (orange/yellow), and Memory Chips (green)
- Find them in dead Golems, strongboxes, mechanical ruins, and from enemy drops
- Return to Bauera and upgrades apply automatically
- Higher Cleanse Walker levels unlock higher weapon upgrade tiers
- Consistent open-world exploration is faster than targeted farming loops
For everything else you need to know about the game, the full Beast of Reincarnation strategy guides collection covers builds, respec options, Stimpacks, and more.