These all projects mentioned above are developed by this developer named TANVIR RAHMAN (TR) from Bangladesh and his helping partner JAI Reddy from India. These are the defi projects that I know are developed by them starting from May 2020 one after another. There may be other projects as well they may have done together to scam as they change their names continuously. At present, their new project is cheese farm.
One can see in the personal twitter page of Tanvir where he has tweeted about many of these projects.
I suggest people to stay away from any of these projects. I know these people since 2017-2018. They started with an exchange project and then created another exchange and other coins. Now, they are taking the benefit of hyped DEFI. Yes, even being in cryptos for a very long time, I fell for their early exchange project where I invested a lot.. Also I ask for help to report these guys to proper authority. Please provide suggestions and/or take actions to save innocent people that might fall in their trap. In this way, we can take away the bad players out of crypto.