Lost Astronaut Achievements Here is the full list of all 10 Lost Astronaut achievements.Filter Achievement View View Image viewList view Sort by TrueSteamAchievement desc TrueSteamAchievement asc Achievement name desc Achievement name asc TSA Ratio desc TSA Ratio asc Gamers desc Gamers asc Steam order Date won desc Date won asc What are achievement flags? Click to find outApply First FlightTo infinity and beyond The ExplorerCompleted 5 stages The ConquerorCompleted 10 stages The EmperorCompleted 15 stages The GodCompleted the game Speed RunnersCompleted the game in less than 10 minutes in speedrun mode Highly Skilled PilotCompleted the game in speedrun mode without dying Be carefulDied 10 times Not againDied 50 times What the hell is wrong with you?Died 100 times