I try and design my own, rather than do ports. Although my "Gauntlet clone" is hedging the line a bit, but I'm planning on it having differences to make it better in certain areas.
Im looking forward to your new game!
Way back in the early days of computing/gaming we had to choose one platform: Atari v Intellivision, Sega v Nintendo, etc. It was cost prohibitive to own more than one console or computer. You were going to have to be a TI guy, or an Apple][ guy, or a Commodore guy, or a Trash-80 guy.
If you wanted to switch platforms you would normally sell off the system you had. My own TI-99/4 system went into the classifieds in order to raise funds for my Apple//+. The Apple//+ was sold to help fund the Macintosh SE, etc. It was cost prohibitive to own multiple systems.
Many of the best 1980s game ideas came from superior arcade hardware and programming talent.
In the early days ports were essential. If you didnt have a port of Pac-Man for the TI-99/4, then TI-99/4 guys didnt get to play Pac-Man at home. Simple. Ports were awesome back then because they were your only hope.
Even if a port sucked back then it was better than nothing.
Today we can run emulators on Xbox, PlayStation, Wii, Switch, PCs or Macs; or even inexpensive Raspberry Pi computers. We can run the actual arcade ROMs on emulators. The actual ROMs!
How many versions of Mappy do we need?