He is best known as the illustrator of the board game Scythe and related paintings, commonly featuring mythical, fantastical beasts, robots and similar concepts.

[2][3][4][7][8][9] This style has also been described as inspired by classic works by Józef Chełmoński, but updated for the new century; as "The Witcher meets mecha".

[12] In 2017 a short film by Neill Blomkamp, based on Różalski's works and showing an alternate 15th century era around the time of the Battle of Grunwald, was announced.

[13] In 2018, a Polish science-fiction short story anthology, inspired by his art, titled Inne światy Jakuba Różalskiego (Other Worlds of Jakub Różalski) was published.

[2][4][8][9] Since 2018 his works have been part of the permanent exhibition in the Museum of Magical Realism "Ochorowiczówka" in Wisła, Poland.