Greg Aleknevicus Explosiv is a simple cardgame for 2-4 players designed by Michael Schacht.
Players are Chicago era mobsters trying to make off with briefcases full of stolen loot.
Each game and takes about 15 minutes to play. Each player is given an identical hand of cards with the values 1-8. The game is then played in a number of rounds. The idea is that whoever places the highest total on each briefcase collects it. The final complication is that if a briefcase ever has eight or more cards played on it then its flipped from its positive value to the negative side, which is always worth 9 points less.