Sites promising "full version free downloads" outside of major storefronts like Steam, GOG, or Big Fish Games should be approached with extreme caution. The Mystery of the Crystal Portal - Free Online Games
Search for her missing archaeologist father and pieces of a key for the powerful "Crystal Portal". Sites promising "full version free downloads" outside of
Most legitimate platforms offer a (typically 60 minutes) before requiring a purchase. PCGames
Innovative circular container system rather than standard lists. Platforms: Windows PC, iOS, and Android. Official Purchase & Play Options PCGames. OnlineGames. MyAccount.
The Mystery of the Crystal Portal - Free Online Games | GameFools. PCGames. OnlineGames. MyAccount.
The Mystery of the Crystal Portal Walkthrough - Big Fish Games
Offers the standard PC download and a dedicated walkthrough guide. Amazon : Provides a digital download code for PC.