Necklace of the Eye

Home: http://www.roguetemple.com/z/noteye/
State: mature, inactive since 2016
Download: http://www.roguetemple.com/z/noteye/download.php
Keyword: tool, roguelike
Code repository: https://github.com/zenorogue/noteye.git (@created 2016, @stars 39, @forks 12)
Code language: C++
Code license: GPL-3.0
Developer: Joseph Botosh, Zeno Rogue

Library that lets rogue-like games use graphical tiles.

Building