DOS games were made well into the 90s and the later ones were on CD-ROMs with fancy FMVs and stuff, some were even on multiple CDs (back then it was a rule thumb that the more CDs a game used, the worse it probably was). You're also probably underestimating just how many DOS games there were, eXoDOS even has tiny freeware games made by one person in Eastern Europe included.
Even the Atari 2600 library is something like 20 megabytes.
DOS games were made well into the 90s and the later ones were on CD-ROMs with fancy FMVs and stuff, some were even on multiple CDs (back then it was a rule thumb that the more CDs a game used, the worse it probably was). You're also probably underestimating just how many DOS games there were, eXoDOS even has tiny freeware games made by one person in Eastern Europe included.
Even the Atari 2600 library is something like 20 megabytes.
Ah, actually I forgot not all games were mines of titan or karateka, lol; I completely forgot the original doom was also a DOS game