Our walkthrough describes Chapter 4 of Lost from the game Callisto Protocol.
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Last update:05 December 2022
This page ofThe Callisto Protocolguide contains awalkthrough for the fourth chapter - Lost.
Head towards the buildings on the horizon.
You will encounter a snow storm - the white lamps will help you navigate your path.
Reach the place where you have to squeezebetween the rocks.
You will encounter Elias.
Find shelter in the outpost
Use the lever to fire up the large outpost gates.
Exploring the entire outpost is optional, but you might find loot and collectibles.
Ultimately, reach theC2 Surface Explorationbuilding.
Squeeze past the partially opened gate - you’ll find anew Reforge.
Take the stairs to the lower level.
Be careful while exploring -some monsters only pretend to be frozen.
Take the narrow passage by the right railing.
Defeat more monsters and reach a new lever.
A good tactic is to pick upexplosive canisters with GRP and throw them at the monsters.
Do this mainly to kill the largest creatures that are more resistant to normal attacks.
Enter the tunnels to the garage
During the fights, entrances to 2 buildings will be unlocked.
First, look into the building where themonsters killed the employee.
Take out his implant to get theKeycode.
Reach the second building that has theentrance to the Tunnels.
You will eventually reach theexit to the surface.
Head towardsGarage Airlock N107.
Go through the airlock - you will find yourself in the garage.
You have to fight more monsters.
This item will immediately appear in Jacob’s inventory.
Use the code on the console and unlock the nearby passage.
Behind it you will find aReforge.
Go down the stairs and go through the new airlock.
Reach the next airlock - Power Station Airlock S105.
You will reach thelocked Security Control S411 passage.
Explore the adjacent area - you could climb on the chest and find agate fuse.
Return with it to the locked gate.
Inside, you canuse the console- a passage in the room where the fuse was located will unlock.
The machine will start but you will get theKeycode.
Monsters will appear in the areaand it is best to grab them and throw at the working machines.
After the fights, go upstairs.
There’s aReforgethere and you canuse the code on the control panel.
Find Dani in the courtyard
ChooseCourtyard Access S502and go down the stairs to the very bottom.
You’ll reach Courtyard Airlock S106 (there’s also a loot chest inside).
You will find yourself in a location with many frozen characters.Some of them are monsters- be ready to fight.
You don’t have to defeat all the creatures -just reach Dani’s vehicle.
After exiting the vehicle, go to theplace where Jacob’s ship crashed.
you could check out the cabins again (e.g.
new collectible) or choose the back passage right away.
Go down to the lower deck and reach the chests where Dani will be standing.
You will move to a new place - follow Dani.
Squeeze through the large gate and reach the next airlock.
You will reach theHangar Flight Deck.
After failing to call the spaceship,you will start falling down - avoid hitting obstacles.
Use the left analog stick to fly through various holes and openings.
Jacob will grab onto one of the protruding elements.
After the cut-scene, approach Dani to end the chapter and advance the next calledBelow.
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