There are many modern games being developed for these 40-something year old computing platforms, which - incidentally - still work great as a gaming/hacking/fun platform, and therefore are attracting all kinds of interesting hacks and devs.
My favourite recent endeavour, is DBugs' EncounterHD - a reboot of an early text adventure game, but given the modern UI and tooling treatment (by a world-class AAA-title developer, it has to be said) ..
https://defenceforce.itch.io/encounter
This is essentially, a text adventure game for a somewhat obscure 80's-era UK-based 8-bit computer, the Oric-1/Atmos, but now in the 21st Century, DBug has done an outstanding job of adding graphics and realtime dynamics/sound to it, some ~30 years after the fact...
It has become a delightful thing to play - on a Steam Deck, for instance, it is quite comfortable!
The game ships within its own build of an Oric-1/Atmos emulator, which you can escape to and use as if it were an Oric Atmos - if you want an Oric-1/Atmos emulator to further play with - and there are other delightful treats in EncounterHD among the lives of the characters in the game... watch out for the Game & Watch, for instance, which features a familiar grumpy monkey in fully playable form ..