Commander keen4 for Tandy 16 color hack/patch.
Based on the Keen 4 composite CGA patch. See: https://int10h.org/blog/2016/05/dopefish-goes-ntsc-commander-keen-4/
- Get a copy of Keen 4 CGA. You should see a checksum like:
$ md5sum KEEN4C.EXE
ebf2e480fb1c44904ccd3b22677d6625 KEEN4C.EXE
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Extract your keen4 CGA zip.
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Copy KEEN4T.BAT, KEEN4T.PAT, CK4PATCH.EXE, c16graph.ck4, and cgahead.ck4 to the same location.
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Run in dosbox, or on your Tandy 1000:
> KEEN4T.BAT
This is a kind of quick-n-nasty reworking of the 16 color composite work noted above to Tandy 160x200 mode. This won't look as good as a nice 320x200 TGA mode version.
While it ought to technically possible to create a 320x200 TGA mode version, one would probably want to leverage the EGA graphics. EGA and TGA work very differently, however, so it would take quite a lot more work.