Carl's achievement for completing a task-based guild's singing entrance exam.
'Sing for your supper' is the achievement Carl earns the instant his 'Take on Me' performance gauge fills, granting him permanent access to the Stage Performance Guild. The system snidely congratulates him on becoming a 'proper musician' who might now earn a third of a cent per stream on Spotify and brag to his kitchen-staff friends about being a 'professional.' Its concrete reward is durable and tactically vital: from now on, hidden guilds with entrance requirements will surface on Carl's map whenever he draws near one — a capability that feeds directly into his escape planning.
A system notification and achievement banner, dripping with the dungeon's usual sarcasm.
The achievement that both admits Carl to the singing guild and permanently reveals nearby hidden guilds on his map.