The Indie Stone is a small independent developer responsible for the creation of Project Zomboid. Chris "Lemmy" Simpson, Andy "Binky" Hodgetts and Marina "MashPotato" Siu-Chong established The Indie Stone in 2009, later joined by Nick "Nickenstein" Cowen in 2011. The company first began working together on small projects in their spare time, developing mods for The Sims 3 and Civilization 5, most notably the Indie Stone Story Progression Mod for The Sims 3. Project Zomboid is The Indie Stone's first commercially released game.
The Indie Stone have been notably plagued with problems while creating Project Zomboid.
Funds frozen by PayPal and Google Checkout
After The Indie Stone's PayPal account was 'limited' briefly, before the decision was ultimately reversed, the team became "wary" of PayPal and opened a Google Checkout account, which proved to be a much more popular purchase method than PayPal. In April 2011, a month after the account was opened, Google Checkout took issue with The Indie Stone selling "donations," blocking new transactions and removing access to the funds in the account, which comprised 80% of their income to date. Asking Google Checkout for clarification, the team received only an irrelevant stock reply. A day later, The Indie Stone were contacted by someone from Google Checkout stating that their funds would be available "soon" and clarifying that Google Checkout offered a "pay what you like" feature.
In May 2011, PayPal placed their account "in a permanent limitation" with a held balance of £4,454.47. Developers Chris Simpson and Andy Hodgetts later explained how they "didn't pay close attention to terms and conditions in PayPal or Google Checkout," and that "the problem was selling a product that didn't currently exist," leading The Indie Stone to instead sell "the world's worst games" with the Project Zomboid Alpha advertised as a free bonus.
Leak to public distribution
In June 2011, soon after the public release of Project Zomboid as a paid pre-alpha tech demo, the game was leaked, and unauthorized copies spread to many other websites.  The unauthorized version of the game enabled downloading from the Project Zomboid's servers with the press of an 'update now' button, regardless of whether the user already had the latest version. In order to avoid paying for these downloads, The Indie Stone took the customer-only paid version offline, and instead, released a free "public tech-demo" for download the next day.
Theft of developers' laptops with source code
On October 15, 2011, the flat of two developers of Project Zomboid was broken into. Two laptops were stolen from the flat, containing large amounts of the initial game code which had not been backed up externally for several months. This resulted in severe delays to the game development. Due to this setback, they gave a presentation at Rezzed entitled "How (not) to make a video game", going over some of the lessons they have learned since starting the project.