Announced last October Trine 4: The Nightmare Prince finds the series swapping back to classic 2.5D platforming and promises to be the “biggest and best entry in the series”.
Amadeus, Pontius, and Zoya are back and on a quest to locate the Prince Selius who’s nightmares have started invading reality. The game includes four player co-cop, both locally and online, although how that works when there’s only three characters hasn’t been explained.
Trine 4: The Nightmare Prince is coming to PlayStation 4, Nintendo Switch, Xbox One, Steam, Discord and other PC platforms this autumn. There will also be the Trine: Ultimate Collection which includes all four games in the series plus bonus content.
Source: Press release