Continued from

I've added a skeleton driver for Palestra-02 console (a TTL-only Pong clone from 1978), and typed in most of its schematic (sans the paddle input circuits). There are bugs in the schematic (connections with no signal source &c), but I do not have the actual console to debug, so this is on hold until one is found somewhere.

Gorodki arcade (also TTL-only) has a much better chance of working - there are known good machine readable schematics, hopefully these can be converted from Proteus format to something nlconv can parse (pinging @IgorRus here).