Per ChatGPT:
RaceRoom Racing Experience (R3E), developed by Sector 3 Studios, holds the official license for DTM (Deutsche Tourenwagen Masters). They offer a dedicated expansion called “DTM Experience,” which includes cars, tracks, and features from various DTM seasons.
In addition to R3E, other racing games have featured DTM content, though not always under official licensing. For example, the “TOCA Race Driver” series by Codemasters included DTM cars and tracks, with “TOCA Race Driver 3” being one of the notable titles.
It’s worth noting that licensing agreements can change over time, and different games may feature DTM content to varying extents. For the most current and official DTM racing experience, RaceRoom Racing Experience remains the primary platform.