Dig four-number veins of Gold, Silver, and Iron — first to $20 wins.
Object: Be the first to bank $20 by filling Gold, Silver, and Iron veins with dice — while sabotaging your opponent with Thieves and Dynamite.
The dice pool is drawn and rolled — you get 2 dice, the computer gets 3 (or vice versa, alternating who's "first" each round). Then you and the computer take turns, one action at a time, until every die in the pool has been claimed.
Gold, Silver, and Iron each hold up to 4 different numbers (any 4 of the 6 faces — you don't need every number, just four distinct ones). A full column pays out at the end of the round: Gold = $3, Silver = $2, Iron = $1 — then it empties and starts over.
The first player to reach $20 wins immediately. Glossary: a "vein" here just means one of your Gold/Silver/Iron columns.
This and other original games can be found in the book 36 New Dice Games by Kenneth P. Langer.
How do you want to play?
Online play needs both of you connected to the internet at the same time, and loads a small connection library from the web — it won't work fully offline.