Limbo is a qemu-based x86 architecture emulator for android devices.
With limbo, you can emulate a complete desktop computer on your device and
install various systems (FreeDOS, Windows, KolibriOS, various GNU/Linux
distributes and any other x86-compatible OS).

Limbo has a wide selection of settings, allowing you to change available
RAM, number of emulated cores, type of CPU, mount hard-drive and cd-rom
images, select emulated graphics, network and audio card types and many
more.

Access to the emulated desktop is done inside limbo with the inbuilt VNC
viewer, SDL mode or an external VNC. To connect to an external VNC, you
can use com.coboltforge.dontmind.multivnc or android.androidVNC