It's unclear whether my next game will support ASCII rendering (keyboard character graphics) as I'm focusing on the tiles display. But there are a ton of games with ASCII graphics (akin "roguelike"), for example check out brogue: https://sites.google.com/site/broguegame/ or Sil: http://www.amirrorclear.net/flowers/game/sil/ They do not require expensive hardware nor disk space! And they are really awesome games (check out "cataclysm DDA" too for a zombie setting).