And it is, as Andy Canham guessed, a grounded satellite. It's my rough and ready interpretation of an American KH11 spy satellite.
The structure is a cardboard tube (somewhat narrower and more robust than a toilet roll inner). It's been detailed with oddments of card, plasticard and scraps of plastic. On each side are broken-off pieces of Plastruct H-beam that represent the supports of the solar panels that would have been ripped off during reentry. The drogue parachute is made from linen thread and PVA-soaked tissue paper.
It doesn't show in these pics but having built the basic structure, I cut off an angled slice so I could show the satellite partly imbedded in the earth by the force of landing.
I guess in reality such a gentle landing is very unlikely without a much larger parachute but, hey, it's only a game!