Deep Sea Base

The Deep Sea Base or otherwise called the Kraken Base is a large circular underwater base that researched time travel, located West of Cape Dun, built by Crimson in the 1980s in the Gamma Timeline with it's supermassive counterpart being the Uroruh Time Machine.

Background
The Base was constructed as a very large prototype for a time machine Crimson was working on, which has a similar design to the one made under Mount Uroruh in ACT III also built by Crimson and started working posthumously after the 1990 Incident. The 1990 Incident was a catastrophic accident in the Deep Sea Base which involved a large explosion which was responsible for the global wasteland and the ice age that ended up with the ACT III Pine Island. The Deep Sea Base was one of the 2 places on Pine Island were being monitored by the Aurora until the 1990 Incident. The other location being monitored was the identical prototype time machine built under Mount Uroruh, the Uroruh Time Machine, which was inhabited by the Training Bot, also known as the CORE.

Arriving in 1989
In the game, after successfully obliterating Mount Uroruh and the Uroruh Time Machine as a ways of preventing The Great Leader from using it and travelling to 1989. Edward devises a plan to prevent the 1990 Incident to save the island and put a stop to Crimson's schemes once and for all. Edward upgrades the Mach 3 with the help of Bill the mechanic to make the car seaworthy and then tells us to drive to the AA cannon in Cape Dun to disable it so that the car can dive down to the base without getting gunned down. Once the player disables the gun and flies down to the base underwater, the windshield will begin to crack and begin to break due to the water pressure. Right before the car arrives to the entrance the Time Machine's windshield will break totally, and you and Edward will have to swim up to the docking bay. Fortunately, Edward tore out the Time Core before the car sunk to the bottom.

Infiltrating the Underwater Base
Once in the base you and Edward go their separate ways as planned to download viruses via Virus Chip into the Deep Sea Base's 2/3 main computer rooms, the other one Edward takes care of. However, as we navigate our way through the base we are caught by Crimson and he steals the Time Core from Edward to use in the time machine. His agents accidentally initiate the base's time travel sequence instead of the warmup sequence. As a result, a black hole forms an pulls in one of the Time Agents and the main character. What transpires next is the main character chasing the agent to get the time machine's launch codes, as they run through different moments in the game's history and unknown times, although the player is able to use the PLC to get the dates, the dates include 2387 B.C. (The Great Flood), The Ice Age (Mount Uroruh Erupts), Beginning of ACT III (300 B.C.), Volcano chasm (Unknown year), Pine Lake, (1882), Futuristic train, (Unknown year), The Warning, (Unknown year) Severe Thunderstorm, (Unknown year).

Game Ending
As the player returns the base, they realize that Edward is fatally wounded and his death is inevitable due to a injury from an agent, he asks him for the launch codes to prevent the obliteration of the base and once he give them to him, he shrinks the black hole for a few moments before it becomes critical again and the situation is dire. Edward informs the player that his younger self was also present within the base as well and he was almost thrown in the same cell as himself, which Edward then asks the player to take him and ourself out of the base via escape pod. The player leaves with young Edward and old Edward dies right before the great explosion, and the player lands with the escape pod on a nearby isle. Young Edward asks more about what happened in the base, but then feels sympathetic towards the main character for being stuck in the current time. He proceeds to ask him regarding when the player last slept, this is where the main character falls unconscious and the game ends, supposedly as a dream and we wake up back in the Manhofer Testing Grounds.