Hot Air Balloon

Your own focus is the burner. Work, and it climbs.

Sustained work lights the burner and lifts the balloon up its lane along the bottom edge of your screen: the flame answers within seconds, and a solid stretch of focus carries it to the top in around seven minutes. Stop and it cools, drifting back down with no penalty and nothing lost. Like the rest of the family it only ever reads whether you're active, timing and nothing else, with no input hooks anywhere in the code. Push a deep enough session and once a day you'll break peak altitude for a quiet golden moment; envelope skins unlock as lifetime airtime adds up.