The first link brings you to a "Megapack" (already) of 50 DOS games, which is a good selection and includes classics as; The Settlers, Commander Keen & Duke Nukem, many more which i don't know and haven't yet the time to try them out.
[url]http://www.chip.de/downloads/50-DOS-Games-Monsterpack_51404038.html[/url]
To get the rest of the "junk" of 525 DOS games follow this link, it includes some to me known games as; 20'000 Leagues Under the Sea, Ace of Aces, Afterburner, Batman - the Caped Crusader, Battle Chess, California Games, Castle Wolfenstein, Centipede (many more Atari arcade classics), Commando, Dragon's Lair - Escape from Singe's Castle, Dungeon Master, Caves of Kroz, Dungeons of Kroz, F-15 Strike Eagle 1+2, Indiana Jones: and the Last Crusade - and the Revenge of the Ancients - and the Temple of Doom, Leather Godesses of Phobos (ok, this i don't know, but it sounds erm - interesting), Marble Madness (!), Microsoft Flight Simulator 3.0, Paperboy, Populous, Prince of Persia, Se* Vixens from Space, SimCity, Spy vs Spy 3, Star Trek - the Kobayashi Alternative, Wings of Fury, Zack McKracken and the Alien Mindbenders, just to name a few.
[url]http://www.chip.de/downloads/525-kostenlose-DOS-Games_101608995.html[/url]
Of course you need this to play them on recent Machines:
[url]https://www.dosbox.com/download.php?main=1[/url]
Post questions how to run them here, i will try to help you (dosbox configs and such problems), but don't expect a quick reply.
I can't (and won't) upload 575 configs
I haven't played most of them yet, neither that i have set them up, but if you don't expect from me to install 575 everything is cool (i like to run 574 gernot and i have no idea how to handle dosbox