It can ' t be proven either way , since Blizzard dontwont post their concurrent user counts . I don ' t really like either game , but from a game design standpoint , I think TF 2 is better . you need to realise that overwatch is played massively on 3 different systems , while TF 2 only caters to pc players . Sure , but you need to realize the whole world plays games , and Overwatch is very expensive for what it is , while TF 2 is free . The vast majority of people are poor , and free games tend to have a lot more players . Look at DOTA 2 and LoL . The two most popular games on earth , largely due to the fact they ' re free , and can run on shitty computers . I have no doubt that OW is much more played than TF 2 in USA , but not a chance for poorer parts of the world .