As you may have noticed, if you launch the game through Steam, there will either be an endless loading screen or just a black screen. This is due to the fact that on May 7, 2022, the project administration announced that the TDP4: Team Battle project was officially closed.

Originally posted by TDP4 administration:

Dear players,

We are very sad to inform you that TDP4: Team Battle is officially closed. The management has decided that this is the only viable option at this time. Our team would like to see another solution. We hope that you all find a new hobby and wish you all the best.

Thank you for staying with us for these 11+ years and being a part of our community.
Sincerely, TDP4 administration.

source of information: https://vk.com/wall-27591989_227967

Yes. At the moment there is a website where you can still play this game, you can also register there and create an account to save data
Site: https://darkness-project.com/

This site was provided to me by support in the discord server. As for whether it is possible to enter the old account that was created before the official closure of the project - it is unknown, but it is good that at least somehow now you can play your old favorite game

I hope I helped you and you will be able to play the legendary game again, enjoy the game everyone!