Your kids will love them!
With a repertoire of 'fun' activities that are easily executed, new teachers can more easily build a working relationship with their classes. These games are not just a matter of filling time; they help re-engage a distracted class, they recycle vocabulary, get students using the language.
Should games always have a pedagogical value? No.
Some of these appear in different versions and with different names on Dave’s ESL Café, but most of those were designed for smaller classes in countries like South Korea and Japan and don’t work very well with larger groups in Southeast Asia.
advice in regards to developing your own curriculum
How can you develop a curriculum from scratch, with no materials to draw on whatsoever? Having been in this position myself, I might be able to help you out.
Something every teacher should know
The first step in planning a lesson is to have an overview of exactly what will be learned in that lesson (or group of lessons). For example, if you are teaching verb use, you need to determine what you want students to learn.