I can't think of any other flops that match Concord tbh. Except for games that were cancelled after years of development, even the biggest flops still made some money. Even E.T. shifted a million copies and turned a profit, and Atari lingered on as a company for years after.
If we're talking purely about financial losses then yes Bungie has definitely hurt Sony more, but if that's the only metric we're using then Suicide Squad, Anthem, Evolve, Marvel's Avengers, Redfall, Battleborn, Lawbreakers and every other failed live service is also a Concordlike because they definitely lost more money than they made.
For me, a Concordlike isn't just a flop, it has to at least meet these qualifiers:
- Shut down/LTS within a year
- Near-instant massive playercount dropoff
- Cost vastly outweighs profit
- Hideous 'who is this for?' art/game design
- Delusional but rabid fanbase who refuse to accept it's over/community managers who attack The Gamers™
- Kills the studio that made it
Marathon is well on its way, but I think Bungie is going to drag this out to the bitter end and Sony is going to let them just to save face because the Japanese side of the business has to be furious with this ongoing GaaS farce.