Kőnig pursues a diverse set of activities on the Hungarian cultural scene but primarily produces figurative paintings and graphic sheets, mostly in large cycles, treating, among others, the theme of childhood, while he also realised a portrait gallery of literary figures, along with series depicting bathers, bunkers and columns. He organised his most recent series around Ungern-Sternberg khan (Roman von Ungern-Sternberg) and the portrait of a woman (“AB”).
Revisiting the 19th- and 20th-century tradition of cycloramas, he implemented the Kőnig Cyclorama in collaboration with other artists in 1991, while he painted a mural for the Saint Stephen Cathedral of Székesfehérvár in 2022.
Besides his autonomous artistic pursuits, he also explores the borderline area between art and science. He has been working on his graphic reconstruction project of Hungarian castles since the 1970s. He is the author of illustrated publications on subjects of the natural sciences, books on castles, anatomy for artists, and anatomical deformations, while devoting further volumes to the study of spatial analysis in art and the possibilities of composition.