You play as a space pilot whose mission is to collect rare materials in space. Unfortunately at the start of your mission the ship begins leaking fuel. Now the you have to collect as many gems as you can before you run out of fuel. Captain Topaz is an arcade game that plays both casually and competitively. It supports both achievements and online leaderboards when signed into Play Games. Features: Casual Fun Addictive Competitiveness Online Leaderboards Achievements Multiple Difficulties Completely Free.