I posted something like this before. Let me remind you all that we are running low on chesscomputers that can still be emulated. Unless there's a breakthrough with dumping roms from internal MCUs (H8, SH1, HD6303, ...), and not counting rare tournament machines, or prototypes (eg. Omikron Bogol, or Boris Handroid).

Here's a list:

chesscomputers:

Chess King Philidor
CXG Chess 3000
CXG Sphinx 40/50 Plus
Fidelity Gambit Voice
Fidelity Chesster Phantom (brown version, not eyeball)
Fidelity Little Chesster (has MCU, but external ROM)
F̶i̶d̶e̶l̶i̶t̶y̶ ̶E̶l̶i̶t̶e̶ ̶P̶r̶e̶m̶i̶e̶r̶e̶ ̶(̶S̶p̶r̶a̶c̶k̶l̶e̶n̶'̶s̶ ̶+̶ ̶R̶.̶L̶a̶n̶g̶ ̶f̶r̶a̶n̶k̶e̶n̶s̶t̶e̶i̶n̶)
Mephisto Roma II
Mephisto Montreal 68000
Milton Bradley Phantom/Milton/Grandmaster
VEB Chessmaster (2-rom set, one of the dumps is bad)
МПОВТ Стратег (MPOVT Strateg, Belarussian)

There are also some undumped revisions, for example newer versions of Mephisto Portorose 16-bit; the currently dumped one doesn't work with the Bavaria board although the 32-bit version does.
And there may be chesscomputers with a HD6303 running in external mode, like we saw with Novag Super Nova/Supremo.

modules:

Fidelity SC6 Book Openings I
Fidelity SC6 Greatest Games
Fidelity MSC Greatest Games
Fidelity Encyclopedia modules
Fidelity 64 Greatest Games
Fidelity Tarrasch Defense
Mephisto Mondial MM 1000
SciSys Sensor Chess Hyper Modern Super Strong
GGM/MGS Borcheck (checkers)
GGM/MGS Monitor (Master Kriegspiel)
Intellect-02 non-chess games

other:

Fidelity Skat Challenger (card game)
Fidelity Taro (card reader, fortune teller thing)
Novag Gomoku
Novag Xiangqi (I think model 8710 will have a common CPU)
Saitek: made some Bridge and Backgammon computers