Ruins has several referrals:
- Ruins of Alph, from Pokémon Gold, Silver, and Crystal, and Pokémon HeartGold and SoulSilver.
- Sinjoh Ruins, from Pokémon HeartGold and SoulSilver.
- Tanoby Ruins, from Pokémon FireRed and LeafGreen.
- Solaceon Ruins, from Pokémon Diamond, Pearl, and Platinum.
- Abyssal Ruins, from Pokémon Black and White.
- A group of anime-exclusive locations that are periodically encountered by Ash and his friends.
- A group of Friend Areas in Pokémon Mystery Dungeon: Red Rescue Team and Blue Rescue Team. The group consists of the following Friend Areas:
- A group of locations in Pokémon Ruby, Sapphire, and Emerald, where the Legendary titans may be caught:
- A group of locations in Pokémon Platinum, where the Legendary titans may be caught:
- A group of locations in Pokémon Sun and Moon, where the guardian deities may be caught: