Do we know how your world looks?
Your invented realm must seem
Real to readers, not a dream.
Is your plot full of great hooks?
After all every world must have at least two seasons - hot/cold or dry/wet. A novel or story will seem more realistic if this is reflected on. Odd details dropped in here and there will make your world real. You don’t need a detailed description all in one hit as it is things like that people skip when reading. By the end of your novel/story your readers should have a good idea of how your world works, what it’s like during the appropriate season, what the advantages and disadvantages are.
A writer needs an inventive mind
And writing exercises to wind
Up the brain all ready to go
To work dreaming up tales of woe
And book treasures for readers to find.
Word association can be a great way to kickstart ideas. A great I’m Sorry I Haven’t A Clue game is the opposite idea of word dis-association, which could also work for writers. Also just writing whatever comes to your mind for a specific time period can help kickstart a piece of writing. Sitting down and creating a character from scratch can be fun - use pictures and phrases taken from newspapers and magazines to help bring them to life.