In the game Subliminal, the WaterWorks level contains a complex puzzle with energy that leads to the alternative Erase ending. Here’s a brief guide to get through it.
Puzzle at the entrance to WaterWorks
Make your way to the water tower station. You’ll be pushed away from the entrance. Turn right, squeeze through the gap, crouch, and pass under the gates. Inside, find the green energy source and take it with the left mouse button (LMB).
Save
Save
Exit the room, look up, and find the red source. Transfer the energy to it using the LMB. Then, with the right mouse button (RMB), move the red light along the highlighted rails to the end to open the gates.
Enter the opened gates and use the switch to keep them open. Go back, drag the red light to the center of the room, and leave it there.
Return to the room, take the green light, and use it to activate the blue source. This will open new gates that will be held by the red light from the corridor.
Take the same green light again and activate another blue source in the same room. After activation, both power lines for the WaterWorks gates will become active – you can head to the goal.
Erase Ending
Important: this ending is likely only unlocked by activating all the “erase” switches (erase-switch) up to this point (in the basement, at WaterWorks, and on level 4).
After passing through the WaterWorks gates, you’ll find yourself in a corridor. Go right, find the “erase” switch, and use it.
Go back through the corridor. At the end, there will be a room with a staircase. Don’t go up or down; instead, jump down, try to gain speed, and jump to the other side.
Save
You’ll end up in a new location. Make your way to the end and enter a room filled with TVs. There are doors to the left and right, each with an “erase” switch. You need to activate both. The first one switches easily. For the second, you need to hold the interaction key (E) until the progress bar fills up.
After activating both switches, return to the main room with the TVs. Now, the final “erase” switch will become available. Use it to complete the level and get the Erase ending.
