Soon after Ryley Robinson’s return to Alterra, several research teams are sent to 4546B to catalog the species there and begin to uncover alien technology left by the Precursors.  During one research mission, you and your team are sent to explore the Lava Zone.  However, not far along into the expedition, your team is attacked by a Sea Dragon Leviathan.  You and one other team member manage to escape just before the Cyclops explodes and your team member quickly constructs a base.  However, moments after they finish its construction, a Sea Dragon swallows them whole, leaving you stranded and alone in the most dangerous place on 4546B...

This save file starts you right next to the entrance to the Lava Lakes biome with a base and a small number of resources in a locker.  Your goal is to make it to the surface alive.  Once you reach the surface, the challenge is complete.  From there, you can complete the game as you normally would, if you wish.

The start is a little hard.  Sorry about that lol, if you get stuck just load up the file again and try until you get it.  Or see below.

If you get stuck, you can watch this video to get yourself going in the right direction: https://youtu.be/TRdpNeIw2k4

This save file is a companion to "SpeedyMouse's Lost River Challenge."

This save file is inspired by GreyMtnFox's Lost River Survival Challenge.  If you want to check out his original challenge, here's the link: https://www.nexusmods.com/subnautica/mods/912

No mods are required to run this file.

Installation:
Copy this world file into your "SavedGames" folder for Subnautica.  This folder is found in several different locations depending on what platform you play the game on.  A quick google search can help you find it or you can always just search for it on your computer.