I wanted to be able to play RIG on my tablet, but I couldn't find a deck of cards app that supported all the custom operations like discarding all Jacks, drawing a random Ace, etc., so I wrote my own. And then I thought it could really use a die roller. And then it really needed a combat grid with movable tokens...
So anyway, here's RIG VTT, a virtual tabletop for the game, presented free in the hope that others might find it useful, or have feedback or suggestions that could help make it better. I might try to turn it into native mobile apps at some point, but the web version works fine on my iPad which is my basic requirement. I've done some testing on Mac (Chrome and Safari) and PC (Chrome and Edge), but if you have any problems let me know.
Here's the link: http://crosby.nz/rig/
Brief instructions are in the INFO link at the top right.