Van Doesburg had other activities apart from painting and promoting De Stijl: he made efforts in architecture, designing houses for artists, together with Georges Vantongerloo and he designed the decoration for the Café Aubette in Strasbourg. Together with El Lissitzky and Kurt Schwitters, Van Doesburg pioneered the efforts to an International of Arts in two congresses held in Düsseldorf and Weimar, in 1922. A geometrically constructed alphabet Van Doesburg designed in 1919 has been revived in digital form as Architype Van Doesburg. This typeface anticipates similar later experimentation by Kurt Schwitters in his typeface Architype Schwitters.
Van Doesburg also kept a link with DADA, publishing the magazine Mécano under the heteronym of I.K. Bonset (possibly an anagram of "Ik ben zot", Dutch for "I am foolish"). He also published Dada poetry under the same name in De Stijl. Under a second pseudonym, Aldo Camini, he published anti-philosophical prose, inspired by the Italian representative of Metaphysical art, Carlo Carrà. In these works of literature, he heavily opposed individualism (and thus against the movement of the Tachtigers, realism, and psychological thinking. He sought for a collective experience of reality. His conception of intensity had much in common with Paul van Ostaijen's conception of "dynamiek". He wanted to strip words of their former meaning, and give them a new meaning and power of expression. By doing this, he tried to evoke a new reality, instead of describing it.