I made this for the 7 Day Roguelike 2018. 8x8 pixel art.
The tiles have two themes, one is brighter and more high tech, the other is gloomier and more dungeon-like. Walls are deliberately simple to make roguelike procedural generation a little easier.
An included zip archive contains tilemaps in JSON, TSX, and TXT formats in case that's useful to you.
I've included the sprites I made along with a simple attack animation frame for the player character and idle animations for the enemies.
You are free to use these graphics for your own non-commercial projects. Please credit me, and send me a link to the project because that makes me happy.
If you would like to license this set for commercial usage, please purchase the 'Commercial License' found below.