In-app purchases integrated into Sky Words was more challenging than expected. It is one of those features that can only be tested on devices, and the official Unity package was really confusing to get up and running.
I have all the skills and technology to create a Zombie Guard 2. The only outstanding obstacle would be online multiplayer, should I choose to implement it. I would most likely go for a sales oriented route through Steam, in addition to a mobile release.
Also Match 3 Fantasy has been updated, with bug fixes and small changes.
Typically for each project I change technology or mix up my general approach to development, but not this time. Working with quality assets through Unity and fully utilizing the C# language and my current skills of drawing characters is sufficient. I got this.