One exhibition event will run from July 13 to 15 on grass and another on a hard court in a hangar in the city's closed Tempelhof airport from July 17 to 19.
Each tournament will feature six men and six women, and there will be 200,000 euros ($222,000) in total prize money available.
Thiem, Zverev and Kyrgios will be joined by Jannik Sinner for the men's events. Two more players will be announced later.
Matches will have a super tiebreaker replacing the third set. There will be electronic line calls with no line judges to reduce the number of people on the court.
The event replaces a WTA tournament in Berlin, which was set for June but called off.