The game has been designed with the needs of the blind and vision impaired in mind, but can be enjoyed by everyone. It stars Hank Krang, a dirty thief from the near future who recently had a self-aware time machine called the Time Excursion Digital Interface, or TEDI, fall into his lap after a poker game. He has decided to use this technology to travel throughout time, stealing priceless artefacts. In this, his first adventure, Hank travels to Arthurian times in search of the Holy Grail.
Players make their choices through a conversation tree, eliminating the more typical requirement of this style of game of having to type your commands to progress.
The developer states that Grail to the Thief is a nostalgic throwback to childhood favorites such as Zork, The Hitchhiker's Guide to the Galaxy, Day of the Tentacle, and Grim Fandango, and draws inspiration from old BBC radio dramas and the movie Time Bandits.
Grail to the Thief is available from the developer’s website and costs $5.00.