If you liked this
Games like Gnomitaire
If you finished Gnomitaire, the closest matches are Yu-Gi-Oh! GX Tag Force 2, Mystery Solitaire: Grimm's Tales 7, Card Crawl Adventure, Pyramid Solitaire Saga and Nexus: The Zoraidian Oracle. All 10 share its card & board game genre and are ranked by how closely their themes and modes overlap.
