No Man's Sky was almost cancelled
Not only does it contain an almost countless number of planets and creatures in a universe that you would never be done exploring but it was also created by a small team of just 12 people on a relatively low budget in the UK.
Hello Games had only previously released Joe Danger and Joe Danger 2, enjoyable enough titles but nothing on the scope and scale of what is being planned with No Man's Sky. And it almost didn't happen.