This game isn't very popular, and yes, modding it is essentially dead.

it's because the devs were running i wouldn't say a scam but it seems their hope for the game was shortlived because they DID made the effort of set up a proper workshop

but like, iirc they just sorta delivered "the last update" but among the things it added the SDK wasn't one of them...

they COULD just release the SDK now but like, i don't even think there's anyone to listen to feedback anymore.

We have TFTV as a flagship mod which is regually updated. Everything else is mostely dated stuff.