It is tempting to argue that Early Access should only be for certain kinds of games - ambitious games, experimental games, games with a certain degree of the unknown to them. Setting aside the fact that developers can do whatever they want, this approach makes Trine 3: The Artifacts of Power seem like a weird fit. In my memory, this is a series built of wonderfully poised platform adventures, in which elegantly rendered Sleepy Hollow tree limbs curl around a range of ingenious physics puzzles. With its wizards and warriors and its pan-piped soundtrack, it's a bit like spending an evening in Peru's favourite Tolkien theme pub. It's a known quantity, and it has a certain polish.