Interestingly, SimTower was not developed by Maxis but by the Japanese OPeNBooK, and was originally released in Japan as "The Tower". Maxis then published it in

Interestingly, SimTower was not developed by Maxis but by the Japanese OPeNBooK, and was originally released in Japan as "The Tower". Maxis then published it in US as part of the Sim series. OPenBooK went on to develop Yoot Tower ("The Tower II" in Japan), a sequel to the original game, in 1998. Looking at their Wikipedia page (https://en.wikipedia.org/wiki/Vivarium_Inc. https://en.wikipedia.org/wiki/Vivarium_Inc.), seems Seaman and Seaman 2 were also theirs - interesting.