I wouldn't say it's dead/dying, just activity is somewhat down and some projects are struggling to keep developing since they depended on the price of hive. I know our project @holozing for instance has been hit quite hard due to that and is quite in debt atm.
Hive's gone through these eras before many times, the strong dapps will survive while some just go into hibernation til greener times. Hive itself is more than fine imo and a lot is being worked on behind the scenes for the chain, there's a hardfork upgrade set for november for instance.
What games did u use to play that are gone now?
To be honest gone are only three (dcity, WOO, and spliterforge) but I have seen Immortal Kings going away recently as well. The rest looks exactly the same, which shows no dev work on them. I think I was expecting to see all the project going forward and being changed.
While zing looks the same on the website, I can tell you we've been working behind the scenes quite a lot and soon also feel comfortable enough to showcase what we've built as well! There's just been a lot of key missing things that made it hard for us to publicly display our progress, such as using a temporary environment rather than our own. This is now 95% done and we can start capturing clips and maybe even a teaser/trailer.
I'd keep a close eye on it in the near future :D
About others, don't know too much about them, I just know Woo is still alive!
I have seen that you have the release date soon so something has to move.
I have tried to paly it and it does not work so it might be alive but I decided to get rid of all its assets. I did the same with the Rising Star.