The rise appears to be the result of traders continuing to factor in ongoing supply concerns rather than any fresh breaking news, said Jim Steel, precious-metals analyst with HSBC.

FORBES: FOCUS: Platinum Climbs To 17-Month High; Market Remains Focused On Supply Worries

As a result, China announced a fresh set of measures on 1 March this year to try to keep prices in check.

BBC: China new home prices rise in February

The result is a game that has no fixed ending but adapts to the player to constantly put fresh challenges and encounters in front of them.

BBC: Video games without frontiers