The sisters worked on the game most evenings during the spring lockdown, gradually incorporating more elements from news broadcasts about the pandemic.
“That was the case with hoarding. And we saw about the balcony concerts in Italy and turned that into a playing card too,” added sister Rebecca.
Impressed with his daughters' efforts, father Benedikt Schwaderlapp decided to commercialise the game by hiring an artist to design cards, board and box.
So far he's sold 2,000 copies, and signed up a toy store as a secondary distributor.
“Because the game has been so popular it's been quite a challenge for our family-based operation — packing and posting 500 games within a very short period,” he said.
“Demand has been huge from across Germany.”