Unfortunately, the gray and gold cartridges and the digital ROM are no longer available via Kickstarter or BackerKit.
The Kickstarter launched on April 1, 2019 and was available for 30 days. Then it was available via BackerKit until the end of January 2022. The digital ROM was available on BackerKit under the end of February 2022.
Very limited quantities of the gray and gold cartridges are available to pre-order via HeroMart.com! The digital ROM will be available via HeroMart soon. There are HeroMart specific versions of the in game rewards as only Kickstarter backers and BackerKit pre-orders come with the Kickstarter exclusive rewards.