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The Complex: Expedition

Also known as The Complex: Expedition, ce, complex expedition

When a routine expedition into The Complex goes horribly wrong, you're left alone and lost, wandering the seemingly infinite maze of hallways, otherwise known as the Backrooms. Might there be something following you?

Last update
22 Jun 2026
Players now
19
Original sources
1
Latest update
Announcement

Update to The Complex: Expedition

Hello everyone! Here's some information about this update. Added volume options Added a minimized camera shake option Added an interaction icon (toggleable in options) Added achievements General UI touch-ups for cleanli…

6 changesGameplayUI/audio
Latest updates

Update history

Browse past updates and patch notes for this game.

13updates

Gallery

In-game media

Achievements

Community progression

Top picks from 3 Steam achievements, sorted by player unlock rates.

  • MortemDiscover the corpse.9.0%
  • OfferingComplete the second ending.5.0%
  • TrappedComplete the first ending.4.8%