Video game developers, publishers and players come together to raise millions for Ukraine.
Humble Bundle, for example, sells collections of video games online, with proceeds usually benefitting both the developers and charities.
"We are constantly humbled - pardon the pun - by our community. Throughout the year, and particularly during times of crisis and disaster, it's been great to see that across the gaming industry so many others are leaning in as well." She said the firm's partners, Lithuania-based Hidden Layer Games, which made the game Inmost, is "a two-man team from Ukraine and Russia".
Brandon Sheffield, creative director of Necrosoft Games, organised the bundle. He told the BBC he thinks the cause "really resonated with people". The charities which benefitted from the itch.io bundle were International Medical Corps, as well as the Voices of Children Foundation - a Ukrainian charity which provides support to children affected by trauma caused by war.