Mapster is a single-player casual, puzzle, and trivia game in which players are challenged to draw the outlines of countries from scratch based on daily prompts. In this game, players engage in educational activities that test and improve their mapmaking skills by recreating country borders. It stands out with its focus on non-fiction geography, offering a unique twist on map puzzles by requiring players to recall and accurately draw real-world country shapes, fostering learning and memory through gameplay.