71%Strong matchCrime O'Clock
67%35367% positive reviews, Mixed across 353 reviews·Investigation · Hidden Object
—Unmask villains across Crescentland in this detective idle game. Build your agency, upgrade your van, run food franchises, excavate underground riches, and uncover the conspiracy behind NEXUS Industries. Gather clues. Expose the truth. Mystery never sleeps.
Mystery Company
SteamCrescentland is under siege. Across farms, harbors, and forgotten towns, supernatural creatures are terrorizing innocent people.
The Harvest Phantom stalks empty fields. Ghost pirates haunt foggy ports. A massive Leviathan lurks beneath coastal waters.
But nothing is as it seems.
You are Ace, a former detective with a food stand, an old van, and a stubborn refusal to believe in monsters. When an anonymous tip points to NEXUS Industries, a shadowy corporation buying up terrified communities at rock-bottom prices, you begin an investigation that will span an entire nation.
Every phantom has a face. Every monster has a motive. And someone called "The Architect" is pulling all the strings.
Travel across 24 distinct zones, from quiet farming villages to industrial port cities. Each location harbors its own mystery waiting to be solved. Gather clues, collect evidence, and unmask the villain behind every haunting.

Mysteries scale in difficulty as you solve them. Return to completed zones for greater challenges and better rewards. The deeper you dig, the more you uncover about the conspiracy threatening Crescentland.
What begins as a one-person operation grows into a full detective agency. Recruit former allies who share your mission:
Assign your team to automate operations while you focus on investigations. Each member levels up, unlocking cost reductions and the ability to handle multiple tasks.
The Garage
Your van is your lifeline. Upgrade its engine, fuel capacity, storage, and special components. Unlock maintenance systems, turbo boosters, and warp drives for instant travel. Collect gears passively or through exploration. Reach higher van tiers to access distant zones.
ClueWorks Laboratory
Research new technologies to enhance every aspect of your operation. Unlock automation features, boost resource generation, improve excavation robots, and gain powerful quality-of-life upgrades. Over 50 research projects await completion.

The Shelter
Construct and upgrade your headquarters. Place specialized rooms on an expandable grid, creating synergies between adjacent facilities. Defensive structures protect against villain counter-attacks. Every room serves a purpose in your growing empire.

Investigations cost money. Your solution: a fast food franchise network.
Purchase locations across Crescentland. Upgrade them through ten tiers, from roadside stands to flagship restaurants. Manage customer satisfaction by balancing menu complexity with demand. Produce snacks used to fuel team operations.
Your franchises generate income while you sleep. Expand your network to increase production, unlock new recipes, and dominate the food industry of every zone you liberate.
Beneath the surface lies a network of biomes rich with resources. Navigate grid-based excavation zones, digging through tiles to uncover coins, crystals, rare items, and treasure chests.

Nine distinct underground environments await, each with unique themes, challenges, and rewards. Deploy an excavation robot to continue mining while away. Upgrade its fuel efficiency, durability, and pathfinding capabilities. Build combo chains for bonus tile reveals.
Mystery Company respects your time. Systems continue operating whether you are actively playing or away:
Research idle operations technology to maximize gains while away. Extended absence generates resources based on your progress, player level, and current zone.
NEXUS Industries is not just buying property. They are building something. Underground tunnel networks connect their acquisitions.
Shell companies obscure their true reach. Military-grade technology surfaces in unlikely places.
Every zone solved reveals another piece of the puzzle. Every villain unmasked provides evidence against the corporation. The truth about The Architect and their ultimate plan unfolds across hundreds of mysteries spanning Crescentland.
Crescentland needs a detective willing to look behind the masks. Someone who sees through the phantom schemes to the corporate greed beneath. Someone who will not stop until the truth is exposed.
The van is gassed up. The investigation board is ready. Mystery Company is open for business.
Every monster has a motive. Find it.
Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.
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