Someone's stolen the postie's shell!

Join S. Cargo in the adventure, exploring the world from a snail's point of view! Solve puzzles and collect items to work your way to the top of the tree, where the nefarious Bird awaits.

Play on with

Cargo lives on a quiet island, working as a postsnail. She is excellent at her job. She has been known to sleep in a little, but no one really expects fast deliveries. Life is good — until one day, when things start disappearing from the island. Now she must take part in a desperate race to get back the things that were stolen.


Current version: 1.02. Please check the system requirements before paying. If you're not sure, you can pay zero now and come back later.

Pay zero

We understand that not everyone is able to pay or has a credit card or PayPal account. It's OK to pay zero for the game.

Source code is available in a git repository.


S. Cargo is a 3D adventure game. You play as Cargo the postsnail, initially delivering mail, and then exploring and solving puzzles as the story progresses. It is played on a desktop or laptop computer with a keyboard and mouse or a game pad (such as a Playstation 3 controller).

This is a free software indy game. If you are curious, you can read about how it was made.

Free software doesn't mean "free of charge". We ask that you buy a copy of the game. Free software actually means that this game respects your freedom. You can use the game in any way you like, study the source code, modify it and share it with your friends.

S. Cargo is licenced under GPL v3 and partially under CC BY-SA. Read more about it on the licence page.

This game was designed for people aged 8-13, but adults are sure to enjoy it too. There is no violence in this game — but you might be stung by a bee. There are references to a culture of drinking, but sauce is consumed (e.g. tomato, black bean, and honey), not alcohol.

GPL v3 logo is copyright Christian Cadena. DRM-free label is copyright Free Software Foundation, Inc.

Contact Us

Feedback is appreciated via tweets to @asmidgin!

If you have any trouble playing the game, please:

  1. Check that you're using the latest version of S. Cargo.
  2. Look in the issue tracker to see if anyone else is having the same problem - you may be able to find instructions to fix the problem yourself there.
  3. If you still have trouble, feel free to create a new issue and we will try to help. Be sure to include information about your computer (e.g. operating system, type of graphics card), and the version of S. Cargo that you have.

S. Cargo is released under the brand of Smidgin.