The demo requires 1.2 GB of space on PS4 and 565 MB on Vita. The PlayStation Store description for the demos reads;
Embark on an adventure unlike any before to an all new WORLD OF FINAL FANTASY. With charming, stylised visuals for both the young and the young at heart, players will capture, customise and evolve iconic monsters by stacking them to form adorable yet strategic monster towers.
World of Final Fantasy will be available for PS4 and PS Vita on October 27, 2016.