Games like Synergia

If you finished Synergia, the closest matches are Hello Charlotte Ep.1: Junk Food, Gods and Teddy Bears, Hello Charlotte Ep.3: Childhood's End, World End Economica: Episode.03, World End Economica: Episode.02 and World End Economica: Episode.01. All 6 share its adventure genre and are ranked by how closely their themes and modes overlap.