Posted By
Csabo
on 2012-07-26
15:15:12
|  Re: Twin Kingdom Valley
Congrats on your first C64 release 
For pure BASIC games, I think the "nicest" thing to do is to make it runnable on both Plus/4 and C64. It's easy to determine which machine we're on, and the colors can be set with POKEs even for the Plus/4 (so that the listing doesn't look funny even in BASIC 2.0). Possibily they can be made to run even on a VIC-20.
For some of the machine language games, conversion is also relatively easy. In 2004 I went on a spree and converted several games (both BASIC and ML), mostly that we would have all the Scott Adams ones. What I really wanted to do was some of the Level 9 games (e.g. Erik The Viking or Red Moon) - I always liked the graphics in those. Where I got stuck was this: I could not unpack the game on C64 and save it so that it can run on its own... Possibly due to the C64's unintuitive (see, I managed not to say stupid... d'oh!) memory management.
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