This is not Pact with a Witch. It's Trapped in a Fantasy Femdom Brothel. It's the first time I upload the game FREE in itchio. In any case, for each new update you will have to download and execute it, the download is saved deep in your phone or pc, but if you use a new device... yeah, you will probably have to start from the beginning or go to find those saved files in the C: folder and put them in the new device. ^^