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You are trapped in the dark mansion. Your flashlight is broken.
Press SPACEBAR to emit a Sonar Echo to see the walls.
Use W, A, S, D to move. Mouse to look.
Find the weapon — LEFT-CLICK to shoot monsters.
Rescue allies — they follow you and fight alongside you.
Collect the 3 fuse cores to power the exit and escape.
Warning: It hears your echoes. Do not let it catch you.