Board Thread:General Discussion/@comment-10811146-20150516204009/@comment-1450946-20150628223653

I don't think there is any official chonological order but for the most part I think the shows/ movies pretty much happeneed in the porder  they were released, such as they were in High School in SDWAY, and by the time of TNSDMysteries they all had jobs, and the Zombie Island - Cyber Chase films featuered the gang also as adults with jobs returning to mystery solving.

There are a few exceptions such as APNSD, SDMI, the Live Action Prequel movies, and the new set of films from AbraCadabra Doo onwards where the gang are back in High School (Elementary in APNSD), but for the most part I think they have stuck to a loose chronological order.

As for alternate timelines as mentioned above, SDMI is clearly set in a different timeline due to almost all of the gangs cases, even ones from when they were originally adults, having already happeend when they're still in High School eg. they've already met the Hex Girls and faced the Lunar Ghost, and has even been stated by the creators to be set in another timeline. Other things that could be considered to be in seperate timelines are that both Zomibie Island and Scooby-Doo The Movie (Live Action) the gang state continuously that monsters aren't real even thoguh they faced them alot during the 80's so they are most likely in seperate timelines from most of those series, aswell as the fact that both films cover the gang getting back together and so are in seperate timelines from each other.

There are many other contradictions within the series aswell, these just seem to be some of the most notable, the franchise has been around for 46 years so there is bound to be, but hopefully this has helped you with trying to find a loose continuity between shows/movies.

PS. as for the comics and video games, I'm not too sure but most usually seem to be based off specific versions of the characters, ie some are based on WNSD and so would be set around the same time as that series, with the gang as adults after theyve gotten back together where as some are set during SDWAY I think, although I don't think they are usually considered canon all that much.