I don't know, but Moebiusfag frog reporting in. I fucking love his works. My favorite is probably L'Enfant Penchée.
Realistically, a video game about his works would either be limited to a point and click, or a stupidly ambitious and unfeasible open world. La Fièvre d'Urbicande could be really neat as you explore an infinitely expanding and growing mesh of cubes taking over a city. And let's not forget about the one in which a civilization of minigirls have to ritualistically sit on a giant dick to be impregnated. No way that would fly in the current censorship-happy climate.
In any case, good fucking taste, faggot.