add a comma separated list of the games you *do* want to be shown in the Games list to the property 'Limit available games' (on the Properties screen). The app should recognise most sensible versions of the game names but it will definitely recognise the 'correct' names: RACE_ROOM, PCARS2, PCARS_64BIT, PCARS_32BIT, PCARS_NETWORK, PCARS2_NETWORK, RF1, ASSETTO_64BIT, ASSETTO_32BIT, RF2_64BIT, IRACING, F1_2018, F1_2019, ACC, AMS2