Penelitian ini bertujuan untuk mengembangkan dan mengevaluasi sebuah game edukatif berjudul Alex’s Potion Sorter yang dirancang untuk membantu pembelajaran logika algoritmik melalui media permainan. Game ini mengimplementasikan beberapa algoritma pengurutan seperti bubble sort dan merge sort dengan pendekatan visual dan interaktif berbasis Unity. Untuk mengevaluasi kepuasan pengguna terhadap game yang dikembangkan, digunakan instrumen GUESS-18 yang terdiri dari sembilan dimensi pengalaman pengguna. Data diperoleh dari 18 responden yang telah memainkan game, kemudian dianalisis menggunakan statistik deskriptif, uji validitas (Pearson), reliabilitas (Cronbach’s Alpha), normalitas (Shapiro–Wilk), serta uji Wilcoxon terhadap nilai tengah skala. Hasil menunjukkan bahwa instrumen GUESS-18 valid dan sangat reliabel (α = 0.9229). Dimensi seperti Personal Gratification, Audio Aesthetic, dan Usability/Playability memiliki nilai rata-rata tinggi dan signifikan terhadap nilai netral. Namun, dimensi seperti Enjoyment dan Social Connectivity belum menunjukkan signifikansi statistik, menandakan aspek interaktivitas dan kenikmatan masih dapat ditingkatkan. Temuan ini mengindikasikan bahwa game Alex’s Potion Sorter efektif dalam menyampaikan materi edukatif namun memerlukan penyempurnaan dari sisi keterlibatan emosional pengguna./This study aims to develop and evaluate an educational game entitled Alex’s Potion Sorter, designed to support algorithmic logic learning through interactive gameplay. The game implements sorting algorithms such as bubble sort and merge sort using a visual and interactive approach developed in Unity. To assess user satisfaction, the GUESS-18 instrument was employed, comprising nine dimensions of user experience. Data were collected from 18 respondents who played the game and analyzed using descriptive statistics, validity test (Pearson), reliability test (Cronbach’s Alpha), normality test (Shapiro–Wilk), and the Wilcoxon signed-rank test. The results show that the GUESS-18 instrument is valid and highly reliable (α = 0.9229). Dimensions such as Personal Gratification, Audio Aesthetic, and Usability/Playability achieved high and statistically significant average scores. However, dimensions like Enjoyment and Social Connectivity did not show statistical significance, indicating that the game’s emotional engagement and interactivity can still be improved. These findings suggest that Alex’s Potion Sorter effectively delivers educational content but requires further refinement to enhance player engagement.