Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download Medieval Dungeon – Platformer Tileset Free.
Medieval Dungeon – Platformer Tileset v1
A set of vector game asset / graphic / sprite / art contains ground tiles and several items / objects / decorations, used for creating platformer games.
Suitable for platformer games with medieval, dungeon, castle, fantasy, or kingdom theme.
– Full vector, so you can scale it at any size, without losing it’s quality. Also fully customizable.
– File included: CorelDraw CDR, Adobe Illustrator AI, EPS, PDF, PNG, and JPG
– Optimized for Tiled Map Editor with 64×64 px tiles.
– 128×128 px separate PNG tiles added (non-tile object’s size also adjusted). Big enough for HD games, and should be easier to resize them to lower resolutions.