90's Style Point-and-Click
Rhiannon: Curse of the Four Branches is a point-and-click adventure game with dated 3D graphics and somewhat off voice acting. The game uses Celtic themes of myths and magic to spice up the cliche setting of house-sitting a spooky mansion.
While the game doesn't really tread any new ground, it's definitely competent at what it does. The story is delivered with environmental clues and voice-over narration. The sound overall could use work, but it has some decent background music, no glaring issues just an overall lack of polish. Visually, while not stunning, the pre-rendered backgrounds are pretty well detailed without being overly cluttered, making them nice to look at without being too confusing.
If you enjoy point-and-click adventures, this will probably be worth a few hours of your time. While somewhat lacking in visual polish compared to more recent games, there's an interesting story and setting that make for a spooky little adventure.