You could have dark grey walls with gaming posters on, maybe stickers of consoles along one wall as a feature. Then have grey army patterned duvets and cushions, along with grey army patterned accessories.

Hi I have been asked by my step sister to help her with some room ideas for her two sons who are 8 and 14, I have no idea what to suggest, she has no more than ￡1000 to spend (its for there birthdays which is in the same month). The little boy wants army things where as the oldest boy wants it to be grey and neutral and have a gaming theme. At the moment it caters more for the oldest. Any ideas?