If you enjoy the trial, you can often unlock the full adventure via a one-time in-app purchase. 3. Subscription Services & Game Passes
Sites like iWin offer over 5,000 full-version games, including Artifex Mundi titles, with unlimited playtime for subscribers.
These usually allow you to play the first hour or the first major chapter of the story.
If you already pay for certain gaming services, you may have access to these games "for free" as part of your membership: