In solidarity with everyone moved by Monday's events we're donating to the restoration of Notre-Dame & giving you the chance to play @AssassinsCreed Unity on Uplay for free.



Details below: — Ubisoft (@Ubisoft) April 17, 2019

Such is the level of accuracy and detail that Ubisoft put into its version of the cathedral, some have suggested the studio's efforts on Unity could help with the reconstruction more directly, though the developer is not involved as things stand. "We would be more than happy to lend our expertise in any way that we can to help with these efforts," a spokesperson told the Guardian. "It is important to keep in mind that what we did for the game was not a scientific reconstruction but rather an artistic vision. While we wanted to be very precise with details, there are some differences in terms of scale."

Ubisoft is far from the only company contributing to the reconstruction. Tim Cook has promised Apple will make a donation, while Disney has pledged $5 million (it has some links to the cathedral, having released The Hunchback of Notre Dame). Dating app Badoo will also donate all the profits it makes from its 22 million users in France this month. Wealthy families and businesses in France are among those who have contributed around $1 billion to the cause so far.

Meanwhile, it emerged one of the measures firefighters employed to get the blaze under control was sending in an 1,100-pound robot named Colossus. The machine can be operated from up to 1,000 feet away, withstand intense conditions, use a fire hose and even carry people to safety.