Underground Maze Explorer

Underground Maze Explorer is an Achievement in the group Investigation Zone Adventures.

To complete this achievement, the player has to fully explore the (Restricted Area) Retroflux Zone.

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Investigation Zone Adventures Achievements A New Horizon "Try Hitting It" The Door Can Be Opened From This Side Alternative Stress Relief A Duel, Fair and Square No Encore No Hilltop Spectating A Good Deed a Day Leap of Celebration! Mini Adventure Victory! Heart of Porcelume The Frozen Clock Dusty Blueprint Rusted Equipment Silent Tape Sealed Gaze "Once Dreamed of Plucking Stars" Echoes of Yesterday All's Fair in Loot and War Another Good Deed Done Dried-up Reagent Unclaimed Cargo Box Overgrown Wilderness Another Good Deed Corruption From Time Witnessing A Sea Change Through Rise and Fall Scaling Endless Peaks Exploring Uninhabited Lands Targeted Blast Targeted Detonation Now That's What I Call Power! Please Follow the Safety Codes! The Stairway of Riddles What the Eye Spies Where One Rushes To CCD: Fully Explored Energy Hub: Fully Explored Sunken Corridor: Fully Explored Walk Right In Just Dropping By Warped Space Explorer Secret Technique: The Ol' Switcheroo Underground Maze Explorer