CACat Mail Co.
Cozy Postal Simulation

Cat Mail Co.

Run a quiet island post office, clear a huge backlog, and master a relaxing workflow of sorting, labeling, and delivering parcels with magical nighttime twists.

Start Beginner GuidePlay Now

Jul 2026

Released

4.3K+

Steam Reviews

Indie

Genre

91.9%

Positive Reviews

Cozy Postal SimulationSteam App ID4380490DeveloperMaracas StudioPlatformSteam

Gameplay Video

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See how the game plays before you jump into the guides.

Cat Mail Co.

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Featured Cat Mail Co. Guides

Cat Mail Co. Steam Guide: 10 Key Tips for Optimal DeliveriesElevate your Cat Mail Co. experience with this Steam guide! Learn 10 expert tips for efficient sorting, smart stacking, and uncovering game secrets.Cat Mail Co. Steam Updates: Patch Note #1 & Initial FixesExplore the first Cat Mail Co. Steam updates and patch notes, including quality-of-life fixes, new features, and initial bug resolutions.Cat Mail Co. Steam Day Night Cycle Guide: MasterNavigate the dual nature of Cat Mail Co.'s day and night cycle on Steam. Learn how routine daytime deliveries and moonlit package mysteries drive progression.Cat Mail Co. Steam Price, Editions, & Supporter Pack DetailsUnlock the value of Cat Mail Co. on Steam! Compare base game price, understand different editions, and see what the Supporter Pack offers for your cozy postal.Cat Mail Co. Steam Delivery Routes Unlocks GuideDiscover how to unlock new delivery routes and destinations in Cat Mail Co. on Steam, and what tasks gate your progression.Cat Mail Co. Steam Co-op Role Splitting for EfficiencyMaster Cat Mail Co. Steam co-op by strategically splitting roles among players for efficient mail sorting, stamping, and delivery, avoiding chaos.
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About Cat Mail Co.

Cat Mail Co. is a cozy simulation game about restoring a struggling island post office. You handle each parcel your way by weighing, labeling, stamping, and sorting for delivery.

The game pairs a calm routine with a meaningful day/night cycle: daytime supports preparation and customer service, while moonlight reveals hidden truths about certain packages.

You can play solo or in online co-op with up to four players, uncovering narrative details as you clear the undelivered backlog.

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Quick Facts

Developer
Maracas Studio
Platform
Steam
Genre
Indie / Simulation
01Core Loop

How a workday runs

The main flow centers on receiving parcel shipments, processing each package correctly, and keeping a compact workspace under control.

  1. 01Boat intake and sortingIncoming mail arrives by daily boat, then needs destination sorting to avoid returns or damaged outcomes.
  2. 02Package handling stepsWeigh parcels, apply labels, add required marks like fragile or heavy, then stamp before routing.
  3. 03Storage disciplineSpace management matters, so organized shelves and prep routines help prevent clutter from the backlog.
02First Sessions

A smooth start path

New players can build confidence by mastering basic handling tasks first, then layering in night mechanics and workflow optimization.

  1. 01Focus on clean basicsStart with accurate weighing, labeling, and destination sorting to establish reliable daily throughput.
  2. 02Use nights for insightAfter daytime operations, observe moonlight effects that reveal hidden package traits and handling clues.
  3. 03Prepare before rushesThe game rewards pre-crastination: set up tools and space ahead of incoming waves to keep a calm pace.
03Play Options

Solo and co-op structure

Cat Mail Co. supports single-player and online co-op, with shared task execution that can be optimized by role splitting.

  1. 01Single-player rhythmPlay at your own speed in a stress-free structure with no timers or penalties.
  2. 02Online co-op up to fourCoordinate with friends to divide sorting, stamping, weighing, and boat loading responsibilities.
  3. 03Accessibility-friendly pacingAdjustable difficulty and playable-without-timed-input support relaxed sessions and varied comfort levels.

Browse by Category

Guides

Beginner help, controls, and practical how-to information.

3 Articles

Updates

New versions, changes, events, and current game status.

1 Article

Mechanics

Core systems, rules, stats, and gameplay interactions.

4 Articles

Economy

Currencies, loot, rewards, shops, and spending priorities.

1 Article

Progression

How runs, levels, unlocks, and long-term progress work.

3 Articles

Modes

Game modes, raids, events, challenges, and their objectives.

2 Articles

Floors

Floors, areas, maps, routes, and depth progression.

5 Articles

Items

Important items, equipment, materials, containers, and how players use them.

1 Article

Mechanics

Core systems, rules, stats, and gameplay interactions.

Cat Mail Co. Steam Boat Intake and Routing OptimizationMaster Cat Mail Co.'s daily boat intake and routing. Learn to efficiently sort, stamp, and deliver parcels, optimizing your cozy cat post office workflow.Cat Mail Co. Steam Day Night Cycle Guide: MasterNavigate the dual nature of Cat Mail Co.'s day and night cycle on Steam. Learn how routine daytime deliveries and moonlit package mysteries drive progression.Cat Mail Co. Steam: Understanding Package Processing StepsLearn the essential Cat Mail Co. Steam package processing steps. Master weighing, stamping, labeling, and sorting to ensure smooth delivery and prevent.Uncovering Cat Mail Co. Steam Secrets: Advanced StrategiesDiscover Cat Mail Co. Steam secrets and advanced strategies to optimize your postal service. Learn efficient sorting, night mechanics, and co-op tips.
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Progression

How runs, levels, unlocks, and long-term progress work.

Cat Mail Co. Steam Delivery Routes Unlocks GuideDiscover how to unlock new delivery routes and destinations in Cat Mail Co. on Steam, and what tasks gate your progression.Cat Mail Co. Steam Demo vs Full Game: Unlocking the FullDiscover the key differences between the Cat Mail Co. Steam demo and the full game. Learn what new features, progression, and content await you.Cat Mail Co. Steam Walkthrough: Full Game Flow GuideMaster the mail in Cat Mail Co. with our full game flow guide. Learn progression, from first day sorting to unlocking new destinations and 100% cleanup.
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Modes

Game modes, raids, events, challenges, and their objectives.

Cat Mail Co. Steam Co-op Role Splitting for EfficiencyMaster Cat Mail Co. Steam co-op by strategically splitting roles among players for efficient mail sorting, stamping, and delivery, avoiding chaos.Cat Mail Co. Steam: Solo vs. Co-op Workflow ComparisonDeciding between solo or co-op in Cat Mail Co. on Steam? Explore how workflow, task management, and the cozy experience differ for single-player.
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Floors

Floors, areas, maps, routes, and depth progression.

Fix Cat Mail Co. Steam Break Room Key Not SpawningExperiencing issues with the Cat Mail Co. Break Room Key on Steam? Learn how to fix key spawning problems and regain access to the break room.Cat Mail Co. Steam Cold Room Guide: Optimize DeliveriesLearn how to unlock and efficiently use the Cold Room in Cat Mail Co. on Steam. Master cold parcel identification, storage, and workflow integration.Cat Mail Co. Steam: Dark Room Unlock Guide & ParcelUnlock the mysterious Dark Room in Cat Mail Co. on Steam. Learn its purpose for sensitive parcels, how to access it, and tips for efficient mail management.Cat Mail Co. Steam: Mastering the Foggy Mountains DeliveryEfficiently conquer the Cat Mail Co. Steam Foggy Mountains route. Learn to unlock, sort, stamp, and deliver parcels, handling special conditions for success.
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Latest Updates

Guide
Cat Mail Co. Steam Deck Controls: Setup & Best Practices2026-07-28
Guide
Cat Mail Co. Steam Guide: 10 Key Tips for Optimal Deliveries2026-07-28
Guide
Cat Mail Co. Steam Release Date & Available Platforms2026-07-28
Updates
Cat Mail Co. Steam Updates: Patch Note #1 & Initial Fixes2026-07-28
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Frequently Asked Questions

Quick answers to the most common questions about Cat Mail Co..

Ready to run the island post office?

Jump into Cat Mail Co. on Steam, then use this wiki to refine your routine, co-op teamwork, and parcel handling flow.

Read the Beginner GuidePlay Now