sinkhole form west tigris river heart mesopotamia reveal large stone door curious unknown marking special team archaeologist world venture site solve puzzle allow inside massive manmade cavern stretch mile straight see team decide leave door slammed shut sand slowly start fill room team face new puzzle solve timein realtime cooperative game curio lose temple player role archaeological team try escape lose temple need communicate collaborate solve unending slew puzzlesunlike game genre curio lose temple endlessly replayable player unique modulebased system player manipulate sort rotate search puzzle component arrive distinct answermdashdescription publisher

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