City building / construction simulation DOS games you can play online, free in your browser. 10 of the 12 titles here start instantly, with nothing to install.
They span 1989 to 1997 and lean towards strategy / tactics, simulation and compilation.
Caesar1993 · Strategy / tactics
Caesar II1995 · Strategy / tactics
Castles: The Northern Campaign1991 · Strategy / tactics
Dungeon Keeper1997 · Strategy / tactics
Fragile Allegiance1996 · Strategy / tactics
SimCity1989 · Simulation
SimCity 2000: CD Collection1995 · Compilation
SimCity Classic1992 · Simulation
SimCity Enhanced CD-ROM1993 · Simulation5.0
The Settlers II: Gold Edition1997 · Strategy / tactics5.0