Quasar

Quasar is a game played in the casino at Flux. It resembles pazaak from Star Wars: Knights of the Old Republic. The player must add random numbers (between certain values) to the score. The object of Quasar is to get the total to twenty, or as close as possible without going over. There are three types of Quasar machine with low, medium and high risk and appropriate payouts.

Schells was developing a system to cheat on Quasar by using a device to record wins and losses. His device slightly increased the chance of winning, but got him thrown out for cheating.

Commander Shepard discovered that someone was using a Quasar machine to funnel credits through the system. After Shepard and the squad traced the signal from relay to relay through the Citadel, they found the 'person' responsible was a rogue AI in the back of the Emporium.