Free Tileset 16x16 by ChaoticCherryCake on DeviantArt
Free Game Tilesets by 2D Game Assets | Dribbble
Top game assets tagged Space and Tileset - itch.io
Free Simple Pixel Tileset 16x16 | GameDev Market
Platform Tile Set - Free | OpenGameArt.org
Lots of free 2d tiles and sprites by Hyptosis | OpenGameArt.org
Platform Tile Set - Free | OpenGameArt.org
Free, huge 32x32px tileset (>20,000 tiles) for building Victorian-era cities/towns (buildings, markets, streets, gardens, slums, etc.). Compatible with hundreds of other free assets in the Liberated Pixel Cup style. CC-BY-SA 4.0 licensed. :