J. Soares and R. da Mota.
" Guiding with an Invisible Hand: Exploring Metroidvanias and their guided non-linearity", in <em>Companion Proceedings of the 20th Brazilian Symposium on Games and Digital Entertainment</em>, Online, 2021, pp. 96-105, doi: <a href="https://doi.org/10.5753/sbgames_estendido.2021.19629">https://doi.org/10.5753/sbgames_estendido.2021.19629</a>.