Kickstarter https://www.kickstarter.com/projects/queengames/escape-zombie-city
English - Escape: Zombie City was funded on the Crowdfunding Kickstarter (See the campaign) platform on the Jul 11, 2014, the campaign lasted 21 days. 963 people helped funded the game, whose the amount requested was $20,000.00. Thanks to these 963 people the game could be funded up to $78,669.00, ~393.34%.
Boardgamegeek https://boardgamegeek.com/boardgameexpansion/173587/escape-zombie-city-expansion-1-survivor-chronicles
English - Escape: Zombie City – Expansion 1 – The Survivor Chronicles is the first expansion for Escape: Zombie City, and it adds two unique modules that you can use separately or together to bring your games in entirely new directions.