Very simple. I will write a sentence and next poster must rewrite it by replacing, adding or removing one word and only one word at a time. Next psoter takes the edite sentence and also changes it by one word, and so the game keeps going. For the purpose of the game, articles don’t count as words.
EVE Online is a video game about serious spaceship business in a single shard universe.
Next poster, replace, add or remove just one word (articles don’t count as words).