Gamesdepot
Free dos games
http://www.gamesdepot.cjb.net/
Dosgamesonline
Download over 550 free spelletjes for the dos platform on dosgamesonline.com
http://www.dosgamesonline.com/
Grumpy
Grumpy gnome software - freeware spelletjes and programming links. useful for beginners.
http://www.grumpygnome.8m.com/
Old games never die
Side scrolling games: over 400 dos freeware/shareware games, with downloads, reviews, screenshots, links, free email ... captain comic, commander keen, duke nukem, jill of the jungle, and many more! all free!
http://www.dosgames.com/g_side.php
Safe Dos Games
Safe Dos Games
http://safedosgames.tripod.com/
Sightquest
Free dos spelletjes that can be downloaded for free online.
http://www.sightquest.com/recreation/free-dos-games-4646.htm