However, other actions, such as destroying a key artefact or murdering a potential ally, can radically change the game.

BBC: Video games without frontiers

And as for the potential threat of world-destroying attack from the mutant feeders?

ENGADGET: Scientists create mutant bugs that produce crude oil, unleash swarm of merciless killers

As the stock market has risen from the depths of the financial crisis, only after destroying the retirement savings of countless Americans, so has a potential scourge: margin borrowing.

FORBES: Urgent: Investors Must Avoid Margin Ditch