DOS games from 1986 you can play online, free in your browser. 8 of the 216 titles here start instantly, with nothing to install.
They date from 1986 and lean towards action, adventure and strategy / tactics.
Gunship1986 · Simulation
King's Quest III: To Heir is Human1986 · Adventure
Risk1986 · Strategy / tactics
Sherlock Holmes: The Vatican Cameos1986 · Adventure
Space Quest I: The Sarien Encounter1986 · Adventure
Starflight1986 · Role-playing (RPG)
Where in the U.S.A. Is Carmen Sandiego?1986 · Educational
Wizardry III: Legacy of Llylgamyn1986 · Role-playing (RPG)