The new level, called One Humanity, is now available for purchase.

Doom II co-creator John Romero has created a new level for the game to raise money for the war effort in Ukraine.

Romero – who was co-designer and co-programmer of the game – is selling the level, called One Humanity, on his website.

Romero says One Humanity is the first new Doom II level since the original release of id Software’s FPS in 1994.

The level costs €5 and 100% of the proceeds will go to the Red Cross and the UN Central Emergency Fund to help the Ukrainian people during the Russian invasion.

“To support the people of Ukraine and the humanitarian efforts of the Red Cross and the UN Central Emergency Response Fund, I’m releasing a new DOOM II level for a donation of €5,” Romero tweeted. “100% of the proceeds go toward these agencies.”

After a follower asked if that was all the proceeds, Romero clarified that all 5 euros would go to charity.

“There were no costs associated with this,” he confirmed. “100% of every cent is going to the relief agencies. So, revenue = proceeds.”

Earlier this week, Ukraine’s deputy prime minister called on Microsoft (Xbox) and Sony (PlayStation) to temporarily cease support for both Russia and Belarus (which supports Russia’s war effort).

In an open letter posted on Twitter, Mikhailo Fedorov said platform owners should “block all Russian and Belarusian accounts” and “temporarily stop the participation of Russian and Belarusian teams and players in all international esports events”.

Ukraine-based Stalker 2 studio GSC Game World told this week that development of the game has been suspended due to the Russian invasion of their country.

Meanwhile, EA has announced that it is removing all Russian teams from FIFA 22 and all Russian and Belarusian teams from NHL 22.