Caveat: I was not in charge of any of the kickstarter organization or money or any of this. What follows is my understanding of the kickstarter situation, and it may not be fully informed.
This has all been said before many times. The original developer, Developer A went missing between when funds were raised and work began. Backup developer, Developer B, was hired instead. Developer B worked for the three months he was contracted to work, but had overpromised and underdelivered, and when his contract was up he promptly disappeared. However, the kickstarter was not for the work to be completed and released, it was to hire someone to work towards those goals. Developer B did what he was hired to do, but unfortunately did not achieve any of the programming goals besides tiles support. The money in his contract is gone and spent. There remains a modest amount of money from the kickstarter, around $1000-2000, which has been earmarked for a bounty reward for the completion of z-level support.