dos dot zone

dos.zone

play ms-dos games online for free using your browser without downloading files

Works for a PC

Some work for a touchscreen such as a kindle or "smart" phone

Some games let you download them although I do not know if downloading is legal

Some games let you download an app

Dos box commands

cycles = max

Emulate dosbox at maximum speed

dir/p

shows same as dir command short for directory pausing when screen is full and let's you press space to see the next section