These spoiler-free case files explain the premise, setting and investigative skills behind each CASE//ZERO mystery. The solution remains locked inside the playable investigation.
Seroja House, Kuching
A late-night death in Room 307 turns on a narrow timeline, a phone that should not have been used and several people whose stories are only partly true.
Kopi Arang, Miri
After closing time at a Miri café, a chef-owner collapses. The shared coffee is not the problem, but one cup tells a very different story.
Signal House Studios, Petaling Jaya
A singer-songwriter dies after a late recording session, but a voice memo appears to place her alive later than the physical evidence suggests.
North Bay Ferry Terminal, Kota Kinabalu
Minutes before the final ferry leaves Kota Kinabalu, a compliance consultant is found dead and a suspiciously clean radio transmission seems to extend her timeline.
Meridian Crown Hotel, Kuala Lumpur
A corporate lawyer is found dead in Suite 1806 after a private settlement meeting, and one page in the signed agreement does not match the rest.
Lorong Cahaya Gallery, George Town
A seven-minute blackout at a private George Town exhibition ends with a dead gallery owner and an artwork that is not quite the one that was hanging before.
Borneo Mercantile & Logistics, Sibu
A finance director dies in a Sibu accounts archive after an annual dinner, while a missing red ledger points toward a procurement trail someone cannot afford to have read.
Sim Sim Waterfront, Sandakan
After a lantern festival on the Sandakan waterfront, the director is found dead in a ticket office and a supposedly moored shuttle appears in the background of a volunteer's video.
Batang Ai Highlands Homestay, Sri Aman
A travel-tech founder falls from a riverside homestay veranda during a six-minute blackout, but the railing tells a more deliberate story.
Southbank Arts Centre, Johor Bahru
Hours before opening night in Johor Bahru, a show director is found dead behind a rehearsal mirror while a looping cue makes the room sound occupied.
National Records Annex, Kuala Lumpur
A sealed archive, three registered override keys and fresh marks from a fourth turn a document review into a locked-room records mystery.
Tanjung Mutiara Container Terminal, Port Klang
A monsoon wipes out part of the CCTV timeline while a handwritten cargo ledger records container moves that officially never happened.
Panggung Arus, Kuala Lumpur
Witnesses hear the victim speaking after the likely murder window, but the theatre's acoustics preserve more information than the witnesses realise.
Sungai Rejang Heritage Centre, Kapit
A master carver disappears during a heritage preview, and the carved panel left on display is almost—but not quite—the original.
Crocker Range Relay Station, Sabah
A communications outage appears to kill an engineer, but the relay station never actually loses power and a hidden network service keeps transmitting.
Gemas Rail Control Sector, Negeri Sembilan
A monsoon delay leaves a rail systems auditor dead in Relay Hut 27, where the electrical fault looks convincing until the interlocking recorder says it never happened.
Langkawi Marine Research Jetty, Kedah
A marine biochemist dies in Wet Lab 04 after a king-tide sampling run, while a missing cryogenic sample and a private patent draft point far beyond a laboratory accident.
Ipoh Emergency Communications Centre, Perak
A call-quality auditor dies beside her desk while a 00:17 recording appears to place the shift supervisor somewhere he may never have been.
Cyberjaya Data Vault Campus, Selangor
A six-minute fire-suppression alarm blinds part of a Cyberjaya data centre while a hidden compute cluster keeps drawing power behind an account that officially does not exist.
Danum Valley Field Research Annex, Lahad Datu, Sabah
A conservation finance lead falls from a Sabah canopy tower just before verification, while raw forest data shows that Plot 23 exists twice in the carbon ledger.