Oric 16Kb hardware emulator
Oric Atmos 16KB emulator
Tape support limited at 16KB
Sound at 44.1KHz or 48KHz mono, display at 20Hz, speed x1
Portrait mode only
For a full blown emulator, look for goOric
Help and files can be found at https://sites.google.com/site/olivier2smet2/other-projects/oric
Super Advanced Breakout, by Alan Readman, from Tansoft works in 16K, try it.
On S5 devices, long press the right hardware button to get the menu.