The developer decided to [url=https://icyvalet.itch.io/protea/devlog/134554/protea-devlog-3-relation-to-my-previous-projects]lock[/url] his older works because [url=https://vndb.org/v28236]Protea[/url] takes place in the same world as his previous works and much has changed. However, you can still download Neopraxia via Itch by entering this password: neopraxia.
Some time later, Neopraxia was removed and it is no longer available even through the above method.