Cat Mail Co.

IndieSimulation
Downloadable mods 11 Jul 9, 2026 Maracas Studio

Run a cozy cat post office. Sort and deliver parcels from the daily boat, organizing everything your way. At night, the moon reveals hidden truths about packages. Clear a strange backlog, help locals, and unlock new abilities and destinations.

About this game From the developer

A quiet island. A forgotten post office. And a mountain of undelivered mail.

You arrive just in time… or perhaps a little too late. The former postman has vanished, leaving chaos behind: parcels piled to the ceiling, customers growing impatient, and a once-thriving postal service on the brink of collapse.

One package at a time, you’ll bring it back to life.

Cat Mail Co. is about slowing down and enjoying the rhythm of small, satisfying tasks.

Incoming mail arrives by boat, and outgoing parcels must be carefully loaded for their journey.

Sort deliveries for the right destinations, or risk having them returned damaged. Take your time serving customers, organize your storage exactly the way you like, prepare for the next wave, and keep everything running smoothly as the post office slowly regains its former glory.

With each improvement, new destinations unlock, along with tools and abilities to help you manage the growing operation.

Every package tells you how it wants to be handled… but how you do it is up to you.

Weigh parcels to determine postage, apply destination labels, mark fragile or heavy goods, and decorate them with a variety of stamps. Functional or whimsical, every sticker you place adds personality to your work.

There’s no such thing as a “correct” way but just your way.

The post office doesn’t sleep… and neither do you.

As night settles in, moonlight reveals secrets. What seemed ordinary during the day may carry strange properties after dark, offering magical insight into how some parcels should be treated.

The routine continues, but in a magical way.

The massive backlog left behind isn’t just a task, it’s the story of the post office waiting to be uncovered.

Run the post office solo, or with friends.

With up to 4-player co-op, you can divide tasks, optimize your workflow, or simply enjoy the routine together. Whether you’re stamping, sorting, or loading the boat, teamwork makes the mail flow.

Cat Mail Co. Features

  • A cozy, stress-free gameplay loop with no timers or penalties
  • A satisfying package handling system: weigh, stamp, label, and sort
  • A meaningful day/night cycle with magical nighttime mechanics
  • A relaxing “pre-crastination” experience focused on preparation and flow
  • A post office in a cat's world to organize and restore
  • Up to 4-player cooperative gameplay
  • A narrative discovered through sorting parcels

Game details

Release date
Jul 9, 2026
Developer
Maracas Studio
Publisher
Maracas Studio, Gamersky Games
Genres
IndieSimulation
Mod loader
generic
Mods on playbuff
11

All mods for Cat Mail Co.

CatLibTestsDownloadable
In-game tests and developer tools for CatLib and its mods. For mod developers, players do not need it.
v0.7.1/ 10-10
CustomStampsDownloadable
Your own stamps for parcels: put PNG or JPG images into a folder and they join the game's decorative and weight stamps. Build a package of your pack in one click.
v0.1.0/ 10-10
TooLateDownloadable
Join a game that is already running. Up to 8 players. Only the host needs it.
v0.1.1/ 10-10
CatLibDownloadable
Foundation library for Cat Mail Co. mods.
v0.7.1/ 10-10
CrashWatcherDownloadable
The crash window of CatLib: a small Windows program that waits for the game to close and, if it crashed or froze, shows what happened and keeps a report. Comes with CatLib.
v1.1.0/ 10-10
StackItDownloadable
Stand a parcel across two or more parcels whose tops are level, like on the boat deck. Take one from under it and it slides off and falls.
v0.1.0/ 10-07
ParcelBoardDownloadable
A small board in the corner that counts the parcels of the level by destination: all of them, fragile, heavy, frozen and every other mark.
v0.1.0/ 10-07
BetterRepairDownloadable
Set how much cardboard the repair table holds and how much a new day brings back, or make it unlimited.
v0.1.1/ 10-07
ShelfLabelsDownloadable
Up to three extra labels next to every shelf label
v0.2.1/ 10-07
BoatTweaksDownloadable
Changes the crates and baskets on the boat deck and the stack height limits.
v0.3.1/ 10-07
BepInExPack IL2CPPDownloadable
BepInEx pack for IL2CPP x64 Unity games. Preconfigured and ready to use.
v6.0.755/ 03-23