Nintendo licensed DK to various markets. Coleco got the 2600 rights (anyone could make a 2600 cartridge, there was no copy protection system on the console). Atari bought the rights to make a DK cartridge for the 400/800 computers (I wrote that one, it was fun).
I think that Atari also did the PC version later on, which was largely a mechanical translation of a cartridge implementation (might have been the 400/800 version, don't really remember -- I only know that I never got any royalties or bonuses, and that many other people did).
I think that Atari also did the PC version later on, which was largely a mechanical translation of a cartridge implementation (might have been the 400/800 version, don't really remember -- I only know that I never got any royalties or bonuses, and that many other people did).