Celtica (1998)

Celtica is a point and click adventure set on a tiny, mysterious, beautiful and extremely green island off the west Irish coast. The game begins with your character on a small hill near the tip of the island. Several exploratory paths are available to you, including a lighthouse, an abandoned church, and a cemetery. The Celtic theme is played to the full, you will be unable to avoid many stone circles, crucifixes or Celtic knots.