This may be used as an instant assessment of students' performance. Upon comple on of each level, the game also creates a file "gameLog.txt" with tab-separated values. In computers operated by Windows, the file is stored locally in "…\AppData\LocalLow\SavateevLab\ChemChallenge\". The game does not collect and transfer any personal data. The columns which are included in gameLog.txt and their descrip on are given in the Suppor ng Informa on. The data may be imported into any text processor and analyzed (Figure ). Figure shows that in a certain game, a player completed most of the levels within 2 minutes. ΔH 0 of most reac ons is ±1000 kJ, and ΔS 0 is ±500 J K -1 (Figure ). In 46.5% of cases, the player solved tasks by crea ng such a reac on equa on, in which both ΔH 0 and ΔS 0 < 0 (Figure ). ΔH 0 < 0 and ΔS 0 < 0 are in 34.3% of solu ons. ΔH 0 < 0 and ΔS 0 > 0 are in 19.2% of solu ons. The player did not design such a reac on, in which ΔH 0 > 0 and ΔS 0 < 0. Such a combina on of thermodynamic func ons corresponds to a situa on, in which reversed reac on is a spontaneous process, while the forward reac on is non-spontaneous at any T. Figure shows that the player solved most tasks by designing a reac on, in which ΔG < 0 at 298K, 61.6% of cases. In 23.2% of cases, the player applied only hea ng to complete levels. In 3.03%, the player cooled the reac on to complete levels. In this case study, the player accumulated enough points and exchanged them for VisLED. At 298K, the player used VisLED to complete 4.04% of tasks. By using VisLED and hea ng, the player completed 8.08% of levels.