It looks like a kind member answered your main question in the previous thread so I will not repeat after them.
I will answer the concerns about working on two games at once, however. The artists who work on these games do so in their extra time. If I worked on one game at a time, a lot of time would be spent waiting for them to complete the scenes that players get to enjoy. Rotating projects also helps me prevent burn out as working on the games can be quite stressful at times (especially when criticisms and unrealistic expectations start to weigh you down a bit)
I hope that answers some of your concerns. Thank you for playing Town of Passion and Zombie's Retreat =)