The world's biggest gaming platform for children, Roblox, has removed two games that allowed players to fight and kill each other as Russians or Ukrainians.
Roblox said that both games violated its community standards and removed them within four hours of being contacted by the BBC.
War on Larkiv was based in a fictional city that resembled the real city of Kharkiv, where hundreds of people have died in indiscriminate shelling after Russia's invasion of Ukraine in February this year.
It allowed players to watch the bombing of cities such as Mariupol, which was besieged and largely destroyed by Russian forces earlier this year.
Fifty million players, mainly children, log in to Roblox every day to explore, play mini-games and create their own "experiences".
The most popular are showcased to Roblox players through a curated home screen, but others can be found using the search function.